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CalcWolf Everyday Life Time Zone Converter
Everyday Life

Convert Time Between Time Zones

Convert any time between US, European, and Asian time zones. See current time in multiple cities.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

Common Time Zone Conversions

Key offsets from EST: PST: -3 hours (9 AM EST = 6 AM PST). GMT/London: +5 hours (9 AM EST = 2 PM GMT). CET/Europe: +6 hours. IST/India: +10.5 hours. JST/Tokyo: +14 hours (9 AM EST = 11 PM JST). AEST/Sydney: +15 hours. These offsets change during daylight saving time transitions.

Scheduling Across Time Zones

For US coast-to-coast meetings: 12-2 PM EST (9-11 AM PST) works for both coasts during business hours. For US-Europe: 8-10 AM EST (1-3 PM GMT) is the overlap window. For US-Asia: there is almost no overlap during business hours — early morning US (7-8 AM EST) catches late afternoon Asia (8-9 PM JST).

⚡ CalcWolf Insight

The most common meeting scheduling mistake: forgetting that India is +10.5 hours (not +10) and that Australia has three time zones with 30-minute offsets. Use tools like World Time Buddy or Every Time Zone to visualize overlap windows — they prevent embarrassing scheduling errors.

Frequently asked questions
What time is it in London when it is 9 AM in New York?
2 PM (GMT is 5 hours ahead of EST). During daylight saving time (March-November in the US), the difference is 5 hours. During the brief periods when US and UK DST are not synchronized, it can be 4 or 6 hours.
How do I handle daylight saving time?
The US observes DST from the second Sunday of March to the first Sunday of November. Most of Europe changes on different dates. Arizona, Hawaii, and most US territories do not observe DST. Always verify the current offset when scheduling international meetings near DST transition dates.
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Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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