Convert time by UTC offset
Convert a date and time between two explicit UTC offsets, keeping any change of calendar date.
Formula
Target local time = source local time + target offset − source offset
Source local date and time = 2026-10-12T12:00 · Source UTC offset (hours) = 0 · Target UTC offset (hours) = 7
How to use
- Enter the source local date and time.
- Enter both UTC offsets in hours.
- Read the target date and clock time.
Examples
- 12:00 at UTC+0 becomes 19:00 at UTC+7.
Frequently asked questions
Does this know city time zones or DST?
No. Enter the offsets valid at your chosen instant; city and DST lookups belong on timedozen.com.
How do I enter UTC+05:30?
Enter 5.5 hours. UTC+05:45 is 5.75.
Can the date change?
Yes. The result date moves forward or backward when the conversion crosses midnight.
Sources
Updated: