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Time in Poland

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Time in Poland
Warsaw meridian
Time zoneCentral European Time
InitialsCET
UTC offsetUTC+01:00
Standard meridian52nd parallel north (Warsaw meridian; UTC+01:24)[1]
Time notation12-hour clock and 24-hour clock
Adopted5 August 1915 (Warsaw)
31 May 1922
Daylight saving time
NameCentral European Summer Time
InitialsCEST
UTC offsetUTC+02:00
StartLast Sunday in March (02:00 CET)
EndLast Sunday in October (03:00 CEST)
In use since1977
tz database
Europe/Warsaw
Time in Europe:
Light Blue Western European Time / Greenwich Mean Time (UTC)
Blue Western European Time / Greenwich Mean Time (UTC)
Western European Summer Time / British Summer Time / Irish Standard Time (UTC+1)
Red Central European Time (UTC+1)
Central European Summer Time (UTC+2)
Yellow Eastern European Time / Kaliningrad Time (UTC+2)
Ochre Eastern European Time (UTC+2)
Eastern European Summer Time (UTC+3)
Green Moscow Time / Turkey Time (UTC+3)
Turquoise Armenia Time / Azerbaijan Time / Georgia Time / Samara Time (UTC+4)
▉▉▉▉ Pale colours: Standard time observed all year
▉▉▉ Dark colours: Summer time observed

Time in Poland is given by Central European Time (Polish: Czas środkowoeuropejski; CET; UTC+01:00).[2] Daylight saving time, which moves an hour ahead, is observed from the last Sunday in March (02:00 CET) to the last Sunday in October (03:00 CEST).[3] This is shared with several other EU member states.

History

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In the early nineteenth century, Poland observed UTC+01:24 as it was the time corresponding to the offset of their local mean time at the Warsaw meridian, which was also known as Warsaw mean time.[1][4][5] Warsaw switched to CET on 5 August 1915,[4] and the rest of Poland officially adopted CET on 31 May 1922.[6][7] After World War II, daylight saving time was introduced in 1946 by a resolution of the Council of Ministers, though it would be repealed on 21 September 1949.[8][9] Daylight saving time was in use again between 1957 and 1964, and has been in use since 1977.[5][10]

In 2021, following the European Parliament's vote to end daylight saving time, the Centre for Public Opinion Research conducted a survey regarding the time shift, which showed 78 percent of Poles surveyed were not in favour of daylight saving time.[11] Despite this, however, it is not yet known whether the last time change in Poland will occur in 2021 or continue to be observed as there are currently no legal regulations for it.[12]

Daylight saving time

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Daylight saving time, which moves an hour ahead, is observed from the last Sunday in March (02:00 CET) to the last Sunday in October (03:00 CEST). DST has been in use since 1977; however, it was previously used from 1946 to 1949 and 1957 to 1964.[10][13]

Year Start End
2021 28 Mar 31 Oct
2022 27 Mar 30 Oct
2023 26 Mar 29 Oct
2024 31 Mar 27 Oct
2025 30 Mar 26 Oct

Notation

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Main article: Date and time notation in Poland

Polish people use both the 12-hour clock and 24-hour clock, though the 12-hour clock is more commonly used in speech when unambiguous, with the AM/PM distinction denoted by phrases in Polish when needed;[14] written communication uses 24-hour clock almost universally, including written forms of informal speech and exclusively in official documents.[15]

IANA time zone database

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In the IANA time zone database, Poland is given one zone in the file zone.tab – Europe/Warsaw. Data for Poland directly from zone.tab of the IANA time zone database; columns marked with * are the columns from zone.tab itself:[16]

c.c.* coordinates* TZ* Comments UTC offset DST
PL +5215+02100 Europe/Warsaw +01:00 +02:00

See also

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References

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  1. ^ a b Meus, Mariusz (October 2019) POŁUDNIK WARSZAWSKI: REWIZJA INFORMACJI DOTYCZĄCYCH KOLUMNY NA PLACU TEATRALNYM W WARSZAWIE ORAZ JEJ ZWIĄZKÓW Z POMIARAMI GEODEZYJNYMI W XIX WIEKU. (in Polish). Academia.edu. Retrieved 9 July 2021.
  2. ^ "Time in Poland". www.timeanddate.com. Retrieved 2022-09-27.
  3. ^ "Poland", The World Factbook, Central Intelligence Agency, 2022-09-20, retrieved 2022-09-27
  4. ^ a b Time Changes in Warsaw Over the Years. TimeAndDate.com. Retrieved 4 May 2021.
  5. ^ a b Historia W Aspektach Różnych (26 March 2017) Historia w Aspektach Różnych: Niechciany powrót czasu letniego. (in Polish). Tysol.pl. Archived from the original on 12 June 2018. Retrieved 4 May 2021.
  6. ^ Time Changes in Poland. www.vercalendario.info. Retrieved 4 May 2021.
  7. ^ Ustawa z dnia 11 maja 1922 r. o rachubie czasu. [The Act of May 11, 1922 on the Count of Time.] (in Polish). Journal of Laws 1922 No.36, item. 307. Internet System of Legal Acts. Retrieved 4 May 2021.
  8. ^ Czas Letni. [Summertime]. (in Polish). Institute of Geodesy and Cartography. Retrieved 4 May 2021.
  9. ^ Uchwała Rady Ministrów z dnia 21 września 1949 r. w sprawie stosowania czasu środkowo-europejskiego na obszarze Państwa. [Resolution of the Council of Ministers of September 21, 1949]. (in Polish). MP 1949 No.71, item. 906. Internet System of Legal Acts. Retrieved 4 May 2021.
  10. ^ a b Bartnicka, Małgorzata (2012) Czas letni w przepisach. [Summer time in the regulations]. (in Polish). Architecturae et Artibus. Retrieved 4 May 2021.
  11. ^ Staff (28 March 2019) Nearly 80% want to scrap clock change - MPiT. Warsaw Business Journal. Retrieved 21 May 2021.
  12. ^ PAP (31 March 2019) M. T. Wójciuk: czas letni był znany w Polsce pod zaborami. [MT Wójciuk: summer time was known in Poland during the partitions]. (in Polish). Nauka w Polsce. Retrieved 4 May 2021.
  13. ^ Time changes in Poland. TimeAndDate.com. Retrieved 21 May 2021.
  14. ^ Time in Poland: Expressions to Tell the Time in Polish, 31 July 2020. PolishPod101. Retrieved 21 May 2021.[better source needed]
  15. ^ Quantities and units - Part 3. (in Polish). Polish Committee for Standardization. Retrieved 21 May 2021. (Paywalled)
  16. ^ Europe (2020 edition) at the tz database. Internet Assigned Numbers Authority (IANA). Retrieved 20 May 2021.
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