Convert a date and time between two time zones, DST included.
About this calculator
Time zone offsets aren't fixed — many places move their clocks forward or back for daylight saving at different times of year, so a simple fixed offset would be wrong for half the year.
This calculator works out each time zone's actual offset for the specific date and time you enter, so daylight saving is handled automatically rather than needing a manual adjustment.
Frequently asked questions
Does this handle daylight saving time?
Yes. The conversion uses your browser's time zone data, so daylight saving is applied automatically for the specific date you enter — which matters, since the offset between two zones changes across the year.
Why is the time difference between two cities not always the same?
Because countries start and end daylight saving on different dates. For a few weeks each spring and autumn the usual gap between two zones shifts by an hour.