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DateAlmanac

What is HST in TRT?

Turkey Time is 13 hours ahead

Hawaii Standard Time is on UTC−10:00 and Turkey Time is on UTC+3:00 right now. That gap holds all year, because neither zone observes daylight saving.

Convert a time

TRT — Turkey Time

11:00 am

TRT, Sat, the next day

Time in Honolulu
10:30:01 PM
Time in Istanbul
11:30:01 AM
Difference
+13 h
Next clock change
Neither zone

Daylight saving

Hawaii Standard Time

No clock changes

Hawaii Standard Time stays on HST all year, so its offset from UTC never moves.

Turkey Time

No clock changes

Turkey Time stays on TRT all year, so its offset from UTC never moves.

HST to TRT conversion table

Every hour of Friday, November 6, 2026, converted from Hawaii Standard Time to Turkey Time. 13 of the 24 hours fall on a different calendar day in Istanbul, which is marked.

12:00 am HST
1:00 pm TRT
1:00 am HST
2:00 pm TRT
2:00 am HST
3:00 pm TRT
3:00 am HST
4:00 pm TRT
4:00 am HST
5:00 pm TRT
5:00 am HST
6:00 pm TRT
6:00 am HST
7:00 pm TRT
7:00 am HST
8:00 pm TRT
8:00 am HST
9:00 pm TRT
9:00 am HST
10:00 pm TRT
10:00 am HST
11:00 pm TRT
11:00 am HST
12:00 am TRT+1 day
12:00 pm HST
1:00 am TRT+1 day
1:00 pm HST
2:00 am TRT+1 day
2:00 pm HST
3:00 am TRT+1 day
3:00 pm HST
4:00 am TRT+1 day
4:00 pm HST
5:00 am TRT+1 day
5:00 pm HST
6:00 am TRT+1 day
6:00 pm HST
7:00 am TRT+1 day
7:00 pm HST
8:00 am TRT+1 day
8:00 pm HST
9:00 am TRT+1 day
9:00 pm HST
10:00 am TRT+1 day
10:00 pm HST
11:00 am TRT+1 day
11:00 pm HST
12:00 pm TRT+1 day

Scheduling between the two

There is no overlap between a nine-to-six working day in Honolulu and one in Istanbul — the gap is too wide. A call has to sit early or late for one side. Early morning in Honolulu is the usual compromise, since that is late afternoon or evening in Istanbul.

Hawaii Standard Time (HST) is used in all of Hawaii, which does not observe daylight saving

Turkey Time (TRT) is used in all of Türkiye, on a permanent UTC+3 since 2016

Other conversions