ブログ
タイムゾーン、DST、分散チームの生産性に関する記事。
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Reference
When Does CDT End in 2026? (And Start in 2027)
CDT ends on Sunday, November 1, 2026 at 2 AM. We'll fall back to CST until March 14, 2027. Mark your calendar — and your meetings.
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Reference
CDT vs CST in 60 Seconds — A Cheat Sheet
Confused about whether you're in CDT or CST right now? A 60-second cheat sheet for telling them apart.
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Tech
Why Programmers Use UTC, Not GMT
UTC and GMT are nearly the same — but not quite. The subtle distinction explains why every modern system uses UTC as the reference.
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Productivity
Scheduling Meetings Across Time Zones — A Practical Guide
How to schedule a Zoom call without making three people show up at the wrong time. CDT, IST, GMT — practical rules from a remote-work veteran.
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History
A Brief History of Daylight Saving Time in the U.S.
From Benjamin Franklin's joke to the Uniform Time Act of 1966 — how the United States ended up with CDT, EDT and the rest.
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