Time zones, UTC and DST explained

The Supreme Guide to World Time Zones

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The world’s time is bracketed by UTC 14 (the first) and UTC-12 (the last). This creates a fascinating 26-hour window for a single “day” to pass across the entire globe. UTC vs. GMT (The common confusion) People often use them interchangeably, but there is a slight technical difference: • GMT (Greenwich Mean Time): This is a time zone used by countries like the UK and African nations. It’s based on the Earth’s rotation. • UTC: This is a scientific standard based on ultra-precise atomic clocks. It

Know Your Time Zones: GMT and UTC

Giờ UTC là gì? GMT và UTC khác nhau như thế nào - Deft Blog