Date and time notation in Poland

In Poland, the official system for representing dates and times follows the international ISO 8601 standard. However, in less official use, other conventions prevail, such as the day-month-year order and several Polish language abbreviations.

Date

In Poland the first system for denoting abbreviated dates used Roman numerals for months (e.g., 11 XI 1918 for Independence Day). The current year can be replaced by the abbreviation "br." and the current month can similarly be replaced by the abbreviation "bm.", in which case the year is omitted altogether. The Roman notation still prevails in private communication, except for date stamps where Arabic numerals are used (as in "Berlin, 9.05.1945"). The authorities changed the order of the date stamps in 1979 to follow Polish industrial standard PN-90/N-01204 (Polskie Normy) similar to ISO 8601; 1981-12-13 has been the preferred format since then.

The month name is written where enough space is provided for the date; the month is in genitive case (because of the meaning e.g., “first day of May”) and the ordinals are often followed by a period to indicate they are ordinal; the date is often preceded by the abbreviation "dn." (day) and followed by the abbreviation "r." (year), as in "dn. 1. maja 1997 r.". The month name can be abbreviated to three initial letters where an actual date stamping device is used, e.g., on letter envelopes.

Poland adopted the ISO 8601 standard for date format in official, especially electronic, communication in 2002. For everyday usage and for less official papers, however, the traditional formats d.m.[yy]yy or dd.mm.[yy]yy (i.e., 7.8.2008, 07.08.2008, 07.08.08) are very common in Poland because of speaking order: "day month year".

Time

A 12-hour clock is used in private communications; a verbose day time is appended to distinguish among morning, forenoon, noon, afternoon, evening and night. The clock starts at midnight and at noon (except when DST is used). A 24-hour clock is used in official documents, the clock starts at midnight (except when DST is used). The day breaks at 4 AM according to common sense albeit several broadcasters extend their published schedules till 6 AM.

When the hour goes by itself, it is preceded by the abbreviation "godz." (for hour); when it is accompanied by minutes, this introductory abbreviation is not needed. Minutes are traditionally superscribed to the hour and underlined, as in 1745 (even in typewritten documents). According to Polish printed publishings norm, a dot is used to separate hours and minutes when not using superscription but popularity of electronic devices caused the dot to be often replaced with a colon (less official).

References

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