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National Reference Metadata in Euro SDMX Metadata Structure (ESMS)

Compiling agency: Statistics Denmark

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The Danish Working Time Accounts (WTA), in Danish Arbejdstidsregnskabet (ATR), produce integrated statistics with consistent time series on employment, jobs, number of hours worked and compensation of employees on an annual and quarterly basis.

The WTA transmit quarterly data to the Eurostat short term business statistics (STS). The variables transmitted to STS are:

Employees and self-employed person: Employed is, if one has an attachment to a workplace in the form of a job where you at least have one hour of paid work in the reference week. However, there is no requirement for the number of paid working hours for employees who are temporarily absent. Persons who up to a period of 45 days have not received salary, but subsequently returned to the same employer, are included in the period without pay. Employment is an assessment of how many people (headcount) are employed at any given time. Concepts in the Danish Working Time Accounts

Wages and Salaries: Compensation for hours worked or for hours paid but not worked. Compensation of employees in the Danisk Working Time Accounts (WTA) includes compensation of employees in cash or in kind which the employer pays to an employee for work performed in an accounting period. See detailed description of Concepts in the Danish Working Time Accounts.

Hours Worked: Hours worked are defined as hours paid by employers, including paid overtime and excluding paid hours of absence. Unpaid overtime hours and criminal (incl. black) work are excluded from the calculation of hours worked in the Danish Working Time Accounts (WTA). See detailed description of Concepts in the Danish Working Time Accounts.

10 June 2025

Employees and self-employed person: Employed is, if one has an attachment to a workplace in the form of a job where you at least have one hour of paid work in the reference week. However, there is no requirement for the number of paid working hours for employees who are temporarily absent. Persons who up to a period of 45 days have not received salary, but subsequently returned to the same employer, are included in the period without pay. Employment is an assessment of how many people (headcount) are employed at any given time. Concepts in the Danish Working Time Accounts

Wages and Salaries: Compensation for hours worked or for hours paid but not worked. Compensation of employees in the Danisk Working Time Accounts (WTA) includes compensation of employees in cash or in kind which the employer pays to an employee for work performed in an accounting period. See detailed description of Concepts in the Danish Working Time Accounts.

Hours Worked: Hours worked are defined as hours paid by employers, including paid overtime and excluding paid hours of absence. Unpaid overtime hours and criminal (incl. black) work are excluded from the calculation of hours worked in the Danish Working Time Accounts (WTA). See detailed description of Concepts in the Danish Working Time Accounts.

The statistical unit in the Danish Working Time Accounts (WTA) is the job that the person has at the individual workplace (establishment).

Employed employees, self-employed and assisting spouses of Danish registered enterprises.

The population covers persons working in Danish enterprises or on Danish ships. The population of the Danish working time accounts (WTA) are persons affiliated to Danish registered companies, which is consistent with European system of (national) accounts (ESA2010) boundaries. ESA2010 includes working in resident companies (see ESA 2010 paragraphs 2.04 to 2.11).

The WTA do not include employees, self-employed or assisting spouses of foreign business enterprises hired out for work in Denmark according to the rules governing hiring-out of labour.

Regarding data transmitted to the Eurostat short term business statistics (STS), only data in market sector are transmitted (i.e. ESA2010 sectors Non-financial corporations (S.11), Financial corporations (S.12 ), Households (S.14) and Sector not stated).

The Danish Working Time Account covers, as in the Danish national accounts, the economic territory of the Kingdom of Denmark excluding the Faroe Islands and Greenland, which is in accordance with Commission Regulation (EC) No 109/2005.

The reference period of the figures in the annual Working Time Accounts (WTA) is the calendar year whereas the reference period of the quarterly working time accounts are the quarters.

The margins of statistical uncertainty are related to the statistical uncertainty of the individual primary statistical data that are used.

The statistics is mainly based on the Labour Market Accounts (LMA), which is a longitudinal register based on integration and harmonization of a large number of registers in Statistics Denmark. This means that LMA can illustrate the labour market better than individual statistics can. LMA is at the same time a total census of the population, so there is not the same uncertainty as with statistics based on sampling. Data is available at a very detailed level, which makes the delimitation of the population and concepts very accurate. Against this background, quality is judged to dump other labour market statistics at home and abroad.

The quality of paid hours is not as high as other concepts in the LMA, but relatively high compared with survey-based statements. In contrast to survey-based statements, where they ask the employed themselves how many hours they work, and as a result, among other things, is subject to memory and random sampling, the registry-based working hours are based on the administrative payroll systems that are also reported to the Danish Customs and Tax Administration. Because the information is thus linked to both income and tax payments, they are considered to be relatively high quality. It also means that hours worked are limited to not including illegal activities and unpaid hours of work, which are information that is not available in administrative sources. Illegal activities and unpaid hours are information that can only be provided by surveys asking the employed themselves. Thus, this information is subject to both the memory and the willingness of the employed to respond. Also due to sampling errors the information will only be available at a relatively aggregated level.

Information on paid hours of work is from the Employment Statistics for Employees (BfL), where paid hours of work are sometimes imputed and therefore there is uncertainty related to this information. However, the proportion of imputed pay hours for employees has fallen from 2008, where the share was more than 14 per cent to less than 2,5per cent by 2022. There is greater uncertainty about the paid hours of work for self-employed and assisting spouses. This is due to the fact that hourly information for self-employed and co-spouses is imputed on the basis of paid hours for employees from BfL adjusted by how much more self-employed and assisting spouses say they work compared to employees in the labour force survey (LFS). The Working Time Accounts (WTA) converts paid hours from the LMA at job level to hours worked using factors calculated using the annual Structure of Earnings at a more aggregated level. The hourly information is considered to fit an overall level, but at the detailed level they should be interpreted with caution.

Since data includes provisional structural data from the Labour Market Accounts (LMA), the projection period in the WTA has been reduced compared to earlier versions of the WTA so that the maximum length of projection is 18 months. The 18-month projection occurs in the calculation of Q2 in September, while for example the calculation of Q# in December only will be projected for six months. This increases the quality of the statistics considerably compared to previous versions of the WTA. By combining structural and short term statistics, both high-quality data from structural statistics and statements of recent periods using faster short term statistics is obtained. In addition, it contributes to the consistency of the WTA both over time and between variables, that the main source used for projection is employment for employees (BfL), which is also the main source of employees in the LMA.

The employment is measured as the number of individuals (calculated as an average over the reference period) and subsequently indexed.

Worked hours are measured as the number of hours and subsequently indexed.

The wage sum is measured in DKK (Danish Kroner) and subsequently indexed.

The starting point for the calculation of the average employment and the average number of jobs is the status information on the number of persons employed and the number of jobs each day of the month according to the Labour Market Accounts (LMA). When calculating the average number of persons employed or the average number of jobs in the quarter or year, this is done as an average of the 3 months in the quarter (12 months in the year), hours worked and payroll in the quarter (year) are calculated as the sum of hours worked and payroll in the 3 months in the quarter (12 months in the year). The Working Time Accounts (WTA) are statistics based on several input sources. Revisions are continuously made due to new data input sources, data breaks in existing input sources, new industry formats, new sector codes, new or changed user needs (national and international), etc.

The series are seasonally adjusted. In line with international guidelines, employment and jobs are seasonally adjusted, but these series are not trade-day adjusted. Hours worked and payroll for employees are both seasonally and working day adjusted.

In delivery to the EU statistics are trade day adjusted before the index is calculated. In Council Regulation (EC) No 2019/2152 of 27 November 2019 concerning European Business Statistics, only indexed data are provided.

The labour market and hence the Working Time Account (WTA) have been strongly affected by the shutdown of society from mid-March 2020 as a result of COVID-19 and by the measures put in place to mitigate the effects of the shutdown. The exceptional circumstances from the latter part of the first quarter of 2020 until the start of 2022 mean that the statement of hours worked is subject to greater uncertainty than usual. Similarly, the new holiday law which came into force on 1 September 2020 has caused a change in the pattern of paid hours, particularly for newly recruited officials who, unlike in the past, are entitled to paid holiday from the start of their employment

The Danish Working time accounts (WTA) are based on a combination of census and survey data. The WTA are compiled on the basis of four primary data sources:

  1. Labour Market Accounts see Documentations of statistics LMA
  2. Structure of Earnings see Documentations of statistics SES
  3. A-Income Statistics see Documentations of statistics AINCOME
  4. Employment Statistics for Employees see Documentations of statistics BfL.

(1) With the Labour Market Accounts (LMA) monthly statements are available on employment, jobs, temporary absences and paid hours of work and for employees also compensation of employees throughout the calendar year for all the years covered by LMA data.

LMA form the basis of WTA on paid hours of work for self-employed and assisting spouses. In LMA these are calculated on the basis of hours paid for employees, but enumerated with how much more self-employed and assisting spouses are working according to labour force survey (LFS). Furthermore, WTA uses the latest developments in LMA to project jobs, employment and paid hours of work for self-employed and assisting spouses.

With LMA longitudinal data, it has become significantly easier to establish, whether leave has its origin in employment or unemployment. WTA uses information on leave from LMA covering all months of the year. Furthermore, continuing recent trends from LMA, WTA projects information on leave from employment (sickness and maternity) to months where no structural data exist.

Another huge quality improvement is that LMA can produce preliminary structural data for the reference year 2016 to be available already in August 2017.

(2) Structural Earning Statistics (SES) are used to convert paid hours of work from LMA to actual hours worked during the year in WTA.

Furthermore, data from the SES are used as help information to describe the distribution of hours worked over the months of the year in the WTA. Earning statistics are used for identifying jobs for workers paid by the hour, who are characterized by not being paid during absence. Therefore, the distribution of paid hours of work by hourly workers can represent the distribution of actual hours worked over the months of the year.

Furthermore, studies based on the labour force survey (LFS) shows that self-employed and assisting spouses do not have a significantly different distribution of hours worked over the year than employees. This information is in the WTA used for calculating the relative distribution of hours worked compared to hours paid for over the months of the year for all employed.

So although from eIncome (LMA and employment statistics for employees) only information on paid hours of work in the month are available, the WTA can thereby calculated how much this represents in hours worked per. month, based on the knowledge of how actual hours of work are distributed relative to paid hours of work over the months. Paid hours of work generally have a different distribution over the months of the year than actual hours worked due to the fact that absence is not evenly spread over the months of the year.

(3) Income statistics data (AINCOME) based on reports from the Danish Central Pension System (CPS) are used for adjusting compensation of employees in the WTA to include earnings of funded labour market pension.

(4) The Employment Statistics of Employees (BFL) contains monthly data on jobs, hours paid and compensation of employees throughout the year for employees. The information is used in the WTA to project compensation of employees, hours paid for, employment, primary and sideline (secondary, third etc.) jobs for employees during periods when there is no AMR data. Given that LMA include preliminary structural data, then the projection period is reduced so that the maximum length of projection is 15 months. The 15-month projection occurs in the calculation of the first quarter in June, while for example the calculation of second quarter figures in September will only be projected for six months. This increases the quality of the WTA statistics considerably.

In deciding which data sources to apply in compiling the WTA, attention is centred on the major advantages provided by each individual statistics. For example, LMA are used to ensure complete coverage in the calculation of employment, number of jobs, aggregate payroll costs and paid hours of work. This includes personal interviews used for obtaining information on groups that are not covered by the administrative registers. Information from the wage and salary system of the enterprises is used to convert paid hours of work into hours worked during the year.

The Working Time Accounts are exclusively based on existing data sources, which are subsequently converted to the concepts used in the WTA. The WTA is flexible in its choice of primary sources, which can be replaced by other sources, if these have proved to be more accurate. The choice of primary source decides the amount of data editing necessary. When it comes to integrating all the sources, however, all the concepts are consistent in conforming to international standards and every variable fulfils the requirement of the system for the WTA.

Data in WTA are summarized (aggregated) prior to integration and projected so that the output data alone are broken down by socioeconomic status (whether you are an employee, self-employed or assisting spouse), industries, sectors, gender and amount of work.

Annual and quarterly statistics are published. Two annual statements (in September with preliminary data for the last year, and in February with final data), and four quarterly statements are released.

The WTA transmit quarterly data to the Eurostat under the new EU regulation (Regulation (EU) 2019/2152 of the European Parliament and of the Council of 27 November 2019 . The variables transmitted : - Number of Persons Employed (Variable 210) - Hours Worked (Variable 220): Paid hours worked in the jobs. - Gross Wages and Salaries (Variable 230)

The annual Working Time Accounts (WTA) are published 6 months after the reference year. The quarterly WTA are published two months and 15 days after the reference quarter.

The statistics are usually published without delay in relation to the scheduled date.

The Danish Working Time Accounts (WTA) are published with provisional quarterly figures 4 times a year (1.st Quarter mid-June, 2nd Quarter mid-September, 3rd Quarter mid-December and 4th Quarter mid-March). Provisional annual statements are normally published in September and final annual statements are normally published in February.

Final annual figures are normally published in December of the year following the reference period.

There is consistency between the annual and quarterly WTA so that quarterly data is also final for periods where final annual statements are available. However, there may temporarily be differences between the annual and quarterly tables, if the publication dates are not the same.

WTA will continuously be published in accordance with Statistics Denmark benchmark goals. For quarterly statistics concerned, this means published data by the end of the following quarter. On account of requirements from Europa-parlamentets and Council Regulation  (EU) 2019/2152, provisional data from the WTA are transferred to Eurostat plus 2 months and 15 days. For the annual statistics the guiding target is by the end of the following year.

The statistics are worked out according to international guidelines, European System of Accounts (ESA 2010) and International Labour Organisation (ILO 1988: Current International Recommendations on Labour Statistics), the latest of which is reviewed in 2013 (Resolution concerning statistics of work, employment and labour underutilization, 19th International Conference of Labour Statisticians).

The population are persons affiliated to Danish registered companies, which is consistent with ESA2010 boundaries. ESA2010 includes working in resident companies (see ESA 2010 paragraphs 2.04 to 2.11) (colloquially called 'the day-time population'). ILO guidelines include the resident population (colloquially called 'the night-time population').

From the fourth quarter of 2019 and onwards, the payroll is incorporated so that accrued holiday pay is recorded at the time of earning and not, as previously, at the time of payment.

Otherwise, there is no data breach in the current ATR time series. But compared to historical versions / releases of WTA, there have been the following data breach:

As from the publication in September 2016 of the WTA for the second quarter of 2016 and the annual WTA for 2008-2015 the working time accounts system surpasses to use longitudinal data from the new Labour Market Accounts (LMA). WTA thus builds on structural data covering all months of the year. Further, the period of projection using short term statistics has been significantly reduced, since the working time accounts in September 2016 make use of a preliminary version of LMA for the year 2015 and the structure on earning statistics for 2015 has been included as well. In February 2017, the preliminary data from LMA for 2015 is replaced with final data for 2015. There is therefore a significant improvement in quality of the WTA. The revision of the WTA on transition to the LMA has given rise to minor revisions in the levels of employment, jobs, hours worked and compensation of employees:

In December 2012 the Working Time Accounts (WTA) were adjusted, implying that new data sources (primarily based on eIncome) are used for the compilation. As changes have been made to the population, concepts, sources as well as methods, this has resulted in revised levels and revised developments throughout the year. See Break in WTA on transition to eIncome.

With eIncome the target population was expanded to include people who work in Danish companies but live abroad:

Furthermore, there were breaks in the WTA as a result of revisions to the classifications of sectors and industries, see [Break in WTA due to changed classifications since 2008]https://www.dst.dk/ext/arbe/WTAbreak).

Earlier versions of the Working Time Accounts (WTA) have been used to write-back the current series to 1995. However, these back-written series are not used for separate disclosure, as the quality is not good enough at the detailed level published in the WTA.

But the series are used to write-back the National accounts employment data series, see for example:

In addition, the back-written series are used in deliveries to the Eurostat Short Term business Statistics (STS), but on the condition that they may not be published separately but solely together with series from other countries.