| Time in Nigeria | |
|---|---|
| Time zone | West Africa Time |
| Initials | WAT |
| UTC offset | UTC+01:00 |
| Standard meridian | 15th meridian east |
| Adopted | 1 September 1919 |
| Daylight saving time | |
| DST not observed | |
| tz database | |
| Africa/Lagos | |
Nigeria observes West Africa Time (WAT), which is one hour ahead of Coordinated Universal Time (UTC+01:00), year-round as standard time. Nigeria has never observed daylight saving time. It shares WAT with fourteen other countries in Africa. Nigeria's local mean time was UTC+00:13:35.
Prior to 1 January 1914, Nigeria was not unified; the Southern Nigeria Protectorate and the Northern Nigeria Protectorate were separate entities. Lagos, the capital of the Southern Nigeria Protectorate, first adopted the standard time of Greenwich Mean Time (UTC+00:00) on 1 July 1905, but reverted to local mean time on 1 July 1908. After the protectorates were amalgamated, UTC+00:30 was adopted nationwide. On 1 September 1919, Nigeria adopted UTC+01:00 as it was seen as a more accurate offset from Greenwich Mean Time.