Convert a specific time from one time zone to another, and see the result across major world cities instantly.
Yes, the converter automatically accounts for daylight saving time changes based on the specific date you select.
This tool shows results for a curated list of major world cities across all time zones, covering the most commonly needed conversions.
Yes, it uses the browser's built-in timezone database (the same one used by operating systems), which is regularly updated and highly accurate.
No, all conversion happens locally using JavaScript's built-in timezone APIs. The date and time you enter never leave your device.
Time zones can differ by more than 12 hours, so converting a time near midnight can shift it into the previous or next calendar day in another zone — this is normal and correctly reflected in the results.
Yes, select any date, and the converter applies the correct daylight saving rules that were or will be in effect for that specific date in each zone.
This tool converts a specific date and time from one time zone into the corresponding local time across a range of major world cities, using the browser's built-in timezone database for accurate, automatically DST-aware results.
Converting time between zones isn't just a fixed offset — daylight saving time changes mean the exact difference between two locations can shift by an hour depending on the time of year, and different countries observe daylight saving on different schedules or not at all. This tool avoids all of these pitfalls by relying on the IANA timezone database built into modern browsers, which tracks the exact historical and current rules for every timezone worldwide, rather than a hardcoded offset that could be wrong for part of the year.
This tool and Logrith's World Clock solve related but different problems. The World Clock shows the current, continuously updating time right now across several cities — ideal for an always-on reference. This converter instead lets you specify any particular date and time, not necessarily the current moment, and see what that exact point in time translates to elsewhere — the right tool specifically for scheduling a future meeting, verifying a past timestamp, or planning around a specific moment rather than checking "what time is it right now."
Once you select a date, time, and source time zone, the tool constructs the exact moment in time you specified, then formats that same moment using each target city's local timezone rules via the Intl.DateTimeFormat API — a standard, built-in JavaScript feature for locale and timezone-aware date formatting. Because this uses the same timezone data your operating system relies on, the results reflect the correct local time and date for each city, including any date-line rollover (where the date itself changes, not just the hour).
All conversions happen directly in your browser using built-in JavaScript APIs — no dates or times you enter are sent to any server, logged, or stored anywhere.
A frequent scheduling mistake is assuming a fixed offset between two time zones year-round, without accounting for the fact that one or both locations may shift for daylight saving at different times of year, or not shift at all. A meeting that lands at 10 AM for one team in March might land at 11 AM for the exact same source time in July, purely because of a daylight saving transition that happened in between. Double-checking the actual converted time for the specific date of a meeting — rather than relying on a remembered offset — is the single most reliable way to avoid double-booking or missing a call entirely due to this kind of seasonal drift.
For technical contexts — logging timestamps, coordinating server deployments, or documenting exactly when an event occurred — many engineering teams standardize on UTC (Coordinated Universal Time) as the single source of truth rather than any particular local time zone. UTC doesn't observe daylight saving at all, so a UTC timestamp always means exactly the same moment regardless of when it's read or by whom, removing an entire category of potential confusion. Converting a UTC timestamp into each team member's local time for a human-readable display, rather than storing or communicating times in any one person's local zone, is widely considered a best practice for exactly this reason.
When scheduling regularly with a team spread across several time zones, it's often worth identifying a consistent overlap window once — a span of hours where most or all participants are within normal working hours — rather than recalculating from scratch for every single meeting. Converting a few candidate times across all relevant zones using this tool, and noting which ones fall within reasonable hours for everyone involved, turns a recurring scheduling headache into a known, reusable time slot for future meetings.
Most time zones are offset from UTC by a whole number of hours, but a handful of regions use half-hour or even 45-minute offsets instead — India (UTC+5:30), parts of Australia (UTC+9:30 in some states), and Nepal (UTC+5:45) are well-known examples. These odd offsets can catch people off guard when doing rough mental math for scheduling, since the usual assumption of whole-hour differences breaks down entirely for these regions. This tool handles them correctly without any special effort on your part, since the underlying timezone database accounts for every region's actual offset, whole-hour or not.