Time Zone Converter
Convert a time from one time zone to another - useful for scheduling meetings and calls across cities.
Why time zone conversion is trickier than it looks
On the surface, converting a time between zones seems like simple arithmetic — just add or subtract a fixed number of hours. In practice, it's more complicated because many countries and regions observe daylight saving time, and they don't all switch on the same dates. This means the actual offset between two time zones can change twice a year, and it can even differ depending on which specific date you're converting, not just which two zones you're comparing.
This tool avoids that pitfall by using your browser's built-in time zone database (the same data operating systems and applications rely on) to calculate the correct offset for the exact date you specify, rather than applying a single fixed offset that might be wrong depending on the time of year.
Common scheduling mistakes this helps avoid
A frequent scheduling error happens when one person is already observing daylight saving time and the other isn't yet (since DST start and end dates vary by country), causing a meeting to be off by an hour even though both people used a "standard" time zone offset. Another common issue is confusing which direction to apply an offset — whether to add or subtract hours — especially when converting across the International Date Line, where the date itself, not just the time, can change.
Reading time zone abbreviations correctly
Time zone abbreviations like EST, PST, or GMT can be ambiguous, since some of them refer to standard time only and don't account for daylight saving shifts, while others are used inconsistently across different countries. Using full time zone names (like "America/New_York" rather than just "EST") avoids this ambiguity, which is why this tool uses that naming convention internally.
Does this handle daylight saving time?
Yes — conversions are calculated for the exact date you enter, so daylight saving shifts are automatically accounted for rather than applying a single fixed offset year-round.
Why do I need to enter a date, not just a time?
Because the offset between two time zones can change depending on the date (due to daylight saving time starting or ending), the same time of day can convert to a different result depending on which day of the year you're scheduling for.
What if I'm scheduling a recurring meeting?
Be aware that a recurring meeting's local time may shift by an hour when one location's daylight saving time starts or ends but the other's hasn't yet, since most calendar tools calculate this to keep the meeting consistent in one time zone rather than the other.
Is this useful for remote teams?
Yes — this is one of the most common uses for a tool like this, since coordinating meeting times across a distributed team's different time zones is a frequent source of scheduling confusion.