Convert any date and time between cities and time zones instantly.
This tool converts a specific time from one timezone to another, accounting for standard time offsets and daylight saving time rules. It's essential for scheduling international meetings, coordinating with remote teams, and planning travel across timezones.
Each timezone has a standard offset from UTC (Coordinated Universal Time), such as UTC-5 for US Eastern Time. The converter applies the appropriate offset difference between the source and target timezone, while also accounting for daylight saving time adjustments where applicable.
Enter a time and select the source and target timezones, and the calculator returns the equivalent time in the destination timezone.
Example: 3:00 PM in New York (Eastern Time, UTC-5) converts to 8:00 PM in London (UTC+0) during standard time, or 8:00 PM/1:00 AM depending on daylight saving overlap between the two regions.
Why do some timezone conversions change depending on the time of year? Daylight saving time causes many regions to shift their clocks forward or backward seasonally, and since different countries observe daylight saving on different schedules (or not at all), the effective time difference between two locations can vary throughout the year.
What is UTC and why is it used as a reference? UTC (Coordinated Universal Time) is the primary time standard that doesn't change with seasons or location, making it a stable reference point from which all other timezones are calculated as offsets.
Why do some timezones have unusual offsets, like +5:30 or +9:45? Some countries and regions use half-hour or even quarter-hour offsets from standard UTC hour boundaries for historical, geographic, or political reasons, rather than strictly following whole-hour zones.
How can I schedule a meeting across multiple timezones? Convert your proposed meeting time into each participant's local timezone individually to confirm the meeting falls within reasonable working hours in every location involved.
Does this tool account for the International Date Line? Yes, accurate timezone conversion accounts for date changes when crossing the International Date Line, since converting between certain timezone pairs can shift the calendar date forward or backward by a full day.