Time Zones and Daylight Saving
A time zone is a political decision as much as a geographic one, which is why offsets include half hours, why two cities can be five hours apart in January and four in July, and why the safest way to write a meeting time is in UTC.
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8 articles
- How Time Zones Work: The Complete GuideFrom Greenwich Mean Time to UTC offsets — everything you need to know.7 min read
- How to Schedule Meetings Across Time ZonesPractical strategies for coordinating with remote teams around the world.5 min read
- Daylight Saving Time: A Complete GuideWhy we change the clocks twice a year, who started it, and the ongoing debate to abolish it.6 min read
- UTC vs GMT: What's the Difference?These two terms are often used interchangeably — but they aren't quite the same thing.4 min read
- How Atomic Clocks Keep Perfect TimeThe science behind the most accurate timekeeping devices ever built.6 min read
- What Are Leap Seconds?Occasionally we add a single second to the clock. Here's why — and why it may be abolished.5 min read
- Why Do Some Time Zones Have Half-Hour Offsets?Learn why India, Newfoundland, Nepal, and other regions use 30- or 45-minute UTC offsets instead of whole hours.7 min read
- Does Unix Time Have a Time Zone? UTC Conversion ExplainedUnix time represents one instant without a local time zone. Learn how offsets enter only when a timestamp is displayed or parsed.7 min read