Current time, time-zone comparisons, and practical planning tools.
A guide to understanding city-to-city time difference pages and meeting overlap.
Answer first
That difference can change when one city observes daylight saving time and the other does not, or when their clock changes occur on different dates.
Use a city-to-city comparison for the current answer, then check a meeting planner if you need a practical overlap window rather than just an offset.
Changes over the year
Possible with DST
Best comparison unit
Two named cities
Best stable reference
UTC
A city’s current time is determined by its time zone and current civil-time rules. When two locations use different rules, their difference may not stay constant throughout the year.
This is especially important for recurring meetings, travel coordination, support coverage, and release windows.
Start with the current difference, then look for a working-hours overlap. If a meeting recurs, decide whether it follows UTC or one participant’s local clock so that the rule is clear around DST changes.
One city may have entered or left daylight saving time while the other did not.
Not always. Some countries use more than one time zone, so compare the specific cities involved.