Difference time between Nigeria and Sierra Leone in hours, minutes, and seconds is [ +1 hours ] with gregorian date today is Friday 19th of September 2025 in Nigerian local time, Where the time now in Nigeria is 00:00 AM and the time now in Sierra Leone is 23:00 PM in Sierra Leonean local time and the time comparison between Federal Republic of Nigeria and Sierra Leone in greenwich time ( GMT ) where Nigeria advanced about greenwich time ( GMT +01:00 ) while Sierra Leone he has the same greenwich time ( GMT +00:00 ).