Warsaw meridian

The Warsaw meridian (Polish: południk warszawski) is a meridian line running through Warsaw. The local mean time at the meridian was known as Warsaw mean time. It corresponds to an offset from UTC of +01:24.

In 1880, a small column marking the meridian was erected at the Theatre Square in Warsaw. It is marked as located at 52°14’40”N 21°00’42”E (in accordance with the coordinate system used at that time).

UTC offset for standard time and
Daylight saving time (DST)
Italics: historical only
−12:00 • −11:30 • −11:00 • −10:30 • −10:00 • −09:30 • −09:00 • −08:30 • −08:00 • −07:00
90°W to < 0°
−06:00 • −05:00 • −04:30 • −04:00 • −03:30 • −03:00 • −02:30 • −02:00 • −01:00 • −00:44 • −00:25
0° to < 90°E
±00:00 • +00:20 • +00:30 • +01:00 • +01:24 • +01:30 • +02:00 • +02:30 • +03:00 • +03:30 • +04:00 • +04:30 • +04:51 • +05:00 • +05:30 • +05:40 • +05:45
+06:00 • +06:30 • +07:00 • +07:20 • +07:30 • +08:00 • +08:30 • +08:45 • +09:00 • +09:30 • +09:45 • +10:00 • +10:30 • +11:00 • +11:30
(180° to < 90°W)
+12:00 • +12:45 • +13:00 • +13:45 • +14:00
Time zone data sources
Lists of time zones