Welcome to the Timezone Converter on CalcVersa — a free online tool that helps you convert times between different global time zones instantly. Whether you’re scheduling meetings, staying in touch with family abroad, or planning travel, this converter makes it easy to know the local time anywhere in the world.
Just select your starting time, choose the source and target time zones, and get the converted time in seconds.
Time zone conversion is useful for:
Travelers can use this tool to convert departure or arrival times into their local time zone for better schedule planning.
Knowing time zone differences helps you tune in to live events, broadcasts, and global premieres at the correct local time.
| From | To | Time Difference | Example |
|---|---|---|---|
| New York (EDT, UTC−4) | Karachi (PKT, UTC+5) | +9 hours | 3:00 PM → 12:00 AM (next day) |
| London (BST, UTC+1) | Karachi (PKT, UTC+5) | +4 hours | 9:00 AM → 1:00 PM |
| Dubai (GST, UTC+4) | Karachi (PKT, UTC+5) | +1 hour | 12:00 PM → 1:00 PM |
| Los Angeles (PDT, UTC−7) | Karachi (PKT, UTC+5) | +12 hours | 9:00 AM → 9:00 PM |
| Sydney (AEDT, UTC+11) | Karachi (PKT, UTC+5) | −6 hours | 10:00 AM → 4:00 AM |
Offsets are based on October 2026 — they change during the year because of daylight saving, which is why the tool always uses fresh data.
You are in Karachi (PKT, UTC+5) and need to talk to a team in New York. In October, New York observes EDT (UTC−4) – a 9-hour difference. A 3:00 PM meeting in New York means 12:00 AM (the next day) in Karachi. Just enter “03:00 PM”, select “America/New_York” as the source and “Asia/Karachi” as the target – the answer appears instantly.
You need to tell family in Karachi when a flight departing London at 9:00 AM (BST, UTC+1) corresponds to their local time. The difference is 4 hours – 9:00 AM + 4 = 1:00 PM PKT. Tell them “1 in the afternoon” and the confusion is gone.
9:00 AM in Los Angeles (PDT, UTC−7) means 9:00 PM in Karachi (a 12-hour gap). A better overlap for both teams is 6:00–8:00 PM Los Angeles time, which is 6:00–8:00 AM in Karachi.
During daylight saving, clocks are moved forward by one hour for part of the year to make better use of evening daylight. In 2026, DST runs from March 8 to November 1 in the United States, and from March 29 to October 25 in Europe. Pakistan does not observe DST – PKT stays at UTC+5 all year.
This is why manual calculations go wrong: the gap between New York and Karachi is 10 hours in winter but 9 hours in summer. CalcVersa’s converter applies the current DST rules automatically, so you never have to remember these shifts.
For travel and international work, these tools pair well with the timezone converter: the Currency Converter for estimating trip costs, the 90 Days From Today Calculator for deadlines and date differences, and the Unit Converter for general measurement conversions.
A Timezone Converter is an online tool that helps you convert times between different global time zones based on UTC offsets and daylight saving rules.
Yes! The Timezone Converter on CalcVersa is completely free and requires no login or setup.
Yes, the tool accounts for current daylight saving adjustments to ensure accurate conversions.
Yes — you can choose any valid time zone from the dropdown lists for source and target zones.
Yes - an active internet connection is required to fetch up-to-date time zone and daylight saving data.
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