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Basetime

Clock changes, country by country

41 of the 141 countries we track change their clocks; 100 never do. The list below runs in date order — the next change is Chile on Sun, 6 Sept 2026 — because "who changes next" is the question this page is for.

Every change in the coming year, one dot per country. The two clusters are the picture: the northern autumn wave, then the spring wave — and the southern hemisphere runs opposite.
now+6 months+12 months

Changing next

In date order. The arrow says which way: → forward into summer time, ← back to standard time.

Never change

One offset, all year. If your difference to one of these ever shifts, it was your side that moved.

Afghanistan · Algeria · Angola · Argentina · Armenia · Azerbaijan · Bangladesh · Belarus · Benin · Bolivia · Brazil · Burkina Faso · Cambodia · Cameroon · Central African Republic · Chad · China · Colombia · Congo - Brazzaville · Congo - Kinshasa · Costa Rica · Côte d’Ivoire · Djibouti · Dominican Republic · Ecuador · El Salvador · Eritrea · Ethiopia · Gabon · Georgia · Ghana · Guatemala · Guinea · Honduras · Hong Kong SAR China · India · Indonesia · Iran · Iraq · Jamaica · Japan · Jordan · Kazakhstan · Kenya · Kuwait · Kyrgyzstan · Laos · Liberia · Libya · Macao SAR China · Madagascar · Malawi · Malaysia · Mali · Mauritania · Mexico · Mongolia · Morocco · Mozambique · Myanmar (Burma) · Nepal · Nicaragua · Niger · Nigeria · North Korea · Oman · Pakistan · Panama · Paraguay · Peru · Philippines · Puerto Rico · Qatar · Russia · Rwanda · Saudi Arabia · Senegal · Singapore · Somalia · South Africa · South Korea · Sudan · Syria · Taiwan · Tajikistan · Tanzania · Thailand · Togo · Tunisia · Türkiye · Turkmenistan · Uganda · United Arab Emirates · Uruguay · Uzbekistan · Venezuela · Vietnam · Yemen · Zambia · Zimbabwe

FAQ

Which countries do not use daylight saving time?

100 of the countries we track keep one offset all year, including Afghanistan, Algeria, Angola, Argentina, Armenia, Azerbaijan, Bangladesh, Belarus. Each country page states the year-round offset.

Why do time differences wobble in spring and autumn?

Countries change clocks on different dates — Europe and North America are a week or more apart — so the usual difference is temporarily an hour off for a few weeks. Every figure on this site reads current offsets from the IANA database, so those weeks are handled automatically.