time-date Verified Precision Tool
Time Zone Converter
Convert date and time between any two global IANA time zones with Daylight Saving Time accuracy.
🌐 Time Zone & Offset Calculator
Convert times globally with real-time flag location pickers, IANA DST accuracy, and hour diff analysis.
Popular:
Offset: UTC-4:00EST/EDT/ET
Offset: UTC+1:00GMT/BST
🌐
Converted Local Time Result+5 hrs
Tue, Sep 1, 2026, 06:00:00 PM
London is 5 hours ahead of New York
New YorkCountry:United States
Timezone IANA:America/New_York
Abbreviations:EST, EDT, ET
LondonCountry:United Kingdom
Timezone IANA:Europe/London
Abbreviations:GMT, BST
Mathematical Formula
Target Time = Source Time plus (Destination Offset minus Source Offset)
Overview & Explanation
Converts date and time between any two locations using date-specific IANA time zone rules.
How It Works
- Parses date and time in source time zone and calculates exact corresponding date and time in destination time zone.
Practical Applications
- Flight arrival time conversion.
- Global webinar scheduling.
Worked Example: New York 12:00 PM to London
Convert time.
1
Calculate Offset Difference
London is 5 hours ahead of New York
= 5:00 PM London Time
Frequently Asked Questions
Why does the time difference change during daylight saving time?
Countries transition into and out of Daylight Saving Time on different calendar dates, altering offset differences.
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