|16:25, 15 June 2021 UTC±00:00|
|-01:00||Cape Verde Time[a]|
|±00:00||Greenwich Mean Time|
|+03:00||East Africa Time|
b Mauritius and the Seychelles are to the east and north-east of Madagascar respectively.
UTC±00:00 is the following time:
- Coordinated Universal Time (UTC), the basis for the world's civil time.
- Greenwich Mean Time
- Western European Time
- Azores Summer Time
- Eastern Greenland Summer Time
- Western Sahara Standard Time
As standard time (Northern Hemisphere winter)
- Portugal (WET)
- United Kingdom (GMT) (including Guernsey, Isle of Man and Jersey)
- Faroe Islands (WET)
- The westernmost point where UTC with DST is applied is El Hierro, Canary Islands, Spain (18°00' W). Time used there is 2 hours and 12 minutes ahead of physical time in the summer, making for the greatest discrepancy in the UTC time zone.
- The easternmost settlement where UTC with DST is applied is Lowestoft in Suffolk, East Anglia, UK (at just 1°45' E).
- Note that Ireland uses the term "standard time" in reference to the summer months and "winter time" during what the rest of the time zone calls "standard time". This is the reverse of the practice of most countries in the EU, but provides the same end results.
- Morocco normally observes UTC+01:00, but the clock is set back one hour during Ramadan. See Time in Morocco for further information.
As daylight saving time (Northern Hemisphere summer)
As standard time (all year round)
- Burkina Faso
- Côte d'Ivoire
- Sahrawi Arab Democratic Republic (disputed territory)
- São Tomé and Príncipe (since 2018)
- Sierra Leone
- Danmarkshavn and surrounding area
- United Kingdom
- The westernmost point where UTC with no DST is applied is Bjargtangar, at the northwest peninsula of Iceland (24°32' W). Time used there is 1 hour and 38 minutes ahead of physical time. This is the greatest deviation from physical time for UTC+00:00 with no DST.