# Commission Implementing Decision of 12 December 2011 laying down rules for Directives 2004/107/EC and 2008/50/EC of the European Parliament and of the Council as regards the reciprocal exchange of information and reporting on ambient air quality (notified under document C(2011) 9068) (2011/850/EU), Division (1): Reporting of time

Extent: E+W+S+N.I.

All time references shall be made available in accordance with the ISO standard 8601:2004(E) using the extended format (YYYY-MM-DDThh:mm:ss ± hh:mm) that includes the information on difference from UTC.
The time stamp refers to the end of the measurement period.

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Source: https://www.legislation.gov.uk/eudn/2011/850/annex/I/division/A/division/1 (the official version)
Page: https://openlegislation.uk/eu-decision-2011-850/annex-I/division-A/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.