UTC−01:00: blue (December), orange (June), yellow (year-round), light blue (sea areas)

UTC−01:00 is an identifier for a time offset from UTC of −01:00. This time is used in:[1]

As standard time (Northern Hemisphere winter)

Arctic Ocean

Atlantic Ocean

As standard time (year-round)


Atlantic Ocean

  • Cape Verde


Regions located UTC-02:00 longitudes using UTC-01:00 time

Areas located in UTC-01:00 longitudes using other time zones

Using UTC-03:00

  • The easternmost tip of Greenland (exluding legal UTC-1 and UTC±0 areas)

Using UTC±00:00

In Africa:

  • Liberia
  • Sierra Leone
  • Guinea
  • Guinea-Bissau
  • Senegal
  • The Gambia
  • Sahrawi Arab Democratic Republic (disputed territory)
  • Most of Mauritania
  • Southwesternmost part of Mali
  • The very westernmost part of Ivory Coast

In Europe:

Using UTC+01:00

In Africa:

In Europe:


  1. ^ UTC-1. 24TimeZones.com. Retrieved 9 May 2021.

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