Time Zone Converter
Articles, guides, and in-depth tips for the Time Zone Converter — everything you need to get the most out of it.
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The Database That Runs Every Clock in Every App Almost Went Away in 2011 — The IANA Timezone Database Story
Why "9 AM London, Every Monday" Arrives at 3 AM in New York Some Weeks — DST, Offset Arithmetic, and Scheduling Global Teams
Tokyo doesn't observe DST; New York does — which means a weekly meeting at "9 AM London" shifts by an hour relative to Tokyo twice a year, while New York shifts at slightly different times than London does. Here's the full offset arithmetic for a London-New York-Tokyo meeting across the year, why "9 AM UTC" is more stable than "9 AM London" for global recurring meetings, and why calendar events stored with UTC offsets break at DST transitions while IANA timezone identifiers don't.
Why "UTC+1" Is the Wrong Way to Represent a Timezone — DST, the IANA Database, and Ambiguous Hours
Daylight Saving Time doesn't just change what clocks show — it changes the UTC offset for every observing timezone, making "UTC+1" ambiguous between London in winter, Paris in winter, and West Africa Time year-round. Here's the IANA timezone database and what it actually contains, why hardcoded UTC offsets break twice a year, the genuinely ambiguous edge cases at spring-forward and fall-back boundaries, and why the standard advice is "store UTC, convert for display."
Scheduling Across Timezones: Finding Overlap Windows, Fair Meeting Rotation, and Async-First Practices
A 9 AM New York meeting is 10 PM in Singapore — and scheduling from headquarters systematically burdens everyone else. Here's how to visualise timezone overlap (or its absence), rotating meeting approaches for fair distribution, the 2-3 week DST gap between US and European transitions, and async-first practices for wide timezone spreads.
Time Zone Converter — Convert Any Time Between World Timezones Instantly
Learn how time zones work, why Daylight Saving Time causes scheduling surprises, how to find convenient overlap for remote teams, and how to use a free time zone converter for meetings, logs, and travel planning.
The World's Strangest Timezones — and the Politics Behind Every Unusual Offset
India's UTC+5:30 and Nepal's UTC+5:45 exist for political reasons, not geographic ones. China has one timezone across a continent. Samoa changed date line sides for economic reasons. Here's the politics and history behind the world's strangest timezone decisions.
Time Zone Converter — UTC Offsets, DST & Scheduling Across Zones
Learn how time zones and UTC offsets work, why daylight saving time causes scheduling chaos, and how to use a free time zone converter for remote work, server logs, and international meetings.
