Time Zone Converter
“Your 2 p.m. is my 3 a.m.” — the international student's eternal problem. Pick your time zone, the target zone, and a date and time; get the converted time with both offsets shown, computed with proper daylight-saving-aware math using your browser's time zone database.
Time in New York
Pick two zones and a date & time.
DST-safe: offsets are evaluated at the exact instant of your chosen date & time using your browser’s time zone database. For an unsupported zone, type any IANA name (e.g. Europe/Berlin) — the picker filters as you type.
How it works
- Choose your zone and the target zone from 30+ common options (or type any IANA zone).
- Pick a date and time in your zone.
- The converter finds the exact UTC instant, then reads the wall-clock time in the target zone.
- Both UTC offsets are shown, so you can see DST differences (e.g. UTC+5 vs UTC+4 in summer).
- The “Now” button fills in the current time for instant comparisons.
The formula
Conversion
instant = local − offset₁ · target time = instant + offset₂
Each zone's offset is evaluated at the exact instant — this is what makes the math correct across daylight-saving transitions.
Worked example
Worked example
- Karachi (PKT, UTC+5) at 12:00 noon on July 15
- Offset at that instant: +5 hours → UTC 07:00
- New York in July is EDT (UTC−4) → 07:00 − 4 = 03:00
12:00 in Karachi = 3:00 AM in New York during summer. In January (EST, UTC−5) the same noon Karachi call lands at 2:00 AM — the DST shift changes the answer.
Common mistakes
- Using a fixed offset — many zones switch between standard and daylight time, so a static “NY = UTC−5” is wrong half the year.
- Forgetting the date — a call at 11 PM Karachi can be the previous or next day in the target zone.
- Trusting the abbreviation — “CST” means different things in the US, China and Cuba. Always convert via zone, not abbreviation.
Frequently asked questions
Does the converter handle daylight saving?
Yes — it evaluates each zone's real offset at the exact instant of your chosen date and time, using the browser's built-in time zone database.
Which zones are available?
30+ common student zones are listed, and you can type any standard IANA zone name (e.g. Europe/Berlin) into the field.
Is my location tracked?
No. Zones are chosen manually — nothing about your location is read or stored.
Why does the day sometimes change?
Crossing the date line or a large offset difference can push the converted time to the previous or next calendar day — the converter shows the correct date.
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