Time ZonesWhat UTC+13 means
A clock set to UTC+13 shows UTC plus 13 hours. When it is 12:00 noon UTC, it is 1:00 am next day here. Compared with India (UTC+5:30) it is 7 hours 30 minutes ahead.
Converting to and from UTC+13
To turn UTC into this time, add 13 hours. To go back to UTC, subtract the same amount. Three examples: 6:00 am UTC is 7:00 pm here; 3:00 pm UTC is 4:00 am here on the next day; 9:00 am here is 8:00 pm UTC on the previous day. The calendar date changes whenever the sum passes midnight.
Where UTC+13 sits on the map
The Earth turns 15 degrees of longitude every hour. The line where the sun-time matches UTC+13 exactly is 195° east. The places that use it are spread much wider than that one line. Of the main cities listed below, Nuku‘alofa (175.2° west) is the farthest west and Auckland (174.8° east) the farthest east. By the sun they are about 23 hours 20 minutes apart, yet their clocks agree.
Who is on UTC+13, and when
2 zone areas in 2 countries and territories keep UTC+13 through the whole year. The towns of 15,000 or more there hold about 63,000 people (GeoNames figures). 1 more zone area is on it for only part of the year: for 1 it is the moved (summer) time. That is why the number of people on UTC+13 rises and falls with the seasons.
Noon at UTC+13 elsewhere
When a clock on UTC+13 shows 12:00 noon, it is 4:30 am in India; 11:00 pm the previous day in London in January and 12:00 am in July; 6:00 pm the previous day in New York in January and 7:00 pm the previous day in July; 8:00 am in Tokyo. For any other place or date, use the converter.
Largest cities on this time
Auckland, Christchurch, Wellington, Apia, Nuku‘alofa.
All year
These places keep UTC+13 through the whole year.
Part of the year
These places are on UTC+13 for part of the year and move their clocks for the rest. Open one for its dates.
Neighbouring offsets: UTC+12, UTC+12:45, UTC+13:45, UTC+14. All UTC offsets.