Perubahan waktu jimat siang pada 2021
- Albania
- Andorra
- Australia
- Austria
- Bahamas
- Belanda
- Belgium
- Bermuda
- Bosnia dan Herzegovina
- Bulgaria
- Chile
- Croatia
- Cuba
- Cyprus
- Czechia
- Denmark
- Estonia
- Fiji
- Finland
- Gibraltar
- Greece
- Greenland
- Haiti
- Hungary
- Iran
- Ireland
- Isle of Man
- Israel
- Itali
- Jerman
- Jersey
- Jordan
- Kanada
- Kepulauan Aland
- Kepulauan Faroe
- Kepulauan Turks dan Caicos
- Kosovo
- Kota Vatican
- Latvia
- Liechtenstein
- Lithuania
- Lubnan
- Luxembourg
- Macedonia Utara
- Maghribi
- Malta
- Mexico
- Monaco
- Montenegro
- New Zealand
- Norway
- Paraguay
- Perancis
- Poland
- Portugal
- Pulau Norfolk
- Romania
- Saint Pierre dan Miquelon
- Samoa
| Negara | Perubahan DST seterusnya | Arah |
|---|---|---|
| Albania | 2021-03-28 | ke hadapan |
| Andorra | 2021-03-28 | ke hadapan |
| Australia | 2021-04-03 | ke belakang |
| Austria | 2021-03-28 | ke hadapan |
| Bahamas | 2021-03-14 | ke hadapan |
| Belanda | 2021-03-28 | ke hadapan |
| Belgium | 2021-03-28 | ke hadapan |
| Bermuda | 2021-03-14 | ke hadapan |
| Bosnia dan Herzegovina | 2021-03-28 | ke hadapan |
| Bulgaria | 2021-03-28 | ke hadapan |
| Chile | 2021-04-04 | ke belakang |
| Croatia | 2021-03-28 | ke hadapan |
| Cuba | 2021-03-14 | ke hadapan |
| Cyprus | 2021-03-28 | ke hadapan |
| Czechia | 2021-03-28 | ke hadapan |
| Denmark | 2021-03-28 | ke hadapan |
| Estonia | 2021-03-28 | ke hadapan |
| Fiji | 2021-01-16 | ke belakang |
| Finland | 2021-03-28 | ke hadapan |
| Gibraltar | 2021-03-28 | ke hadapan |
| Greece | 2021-03-28 | ke hadapan |
| Greenland | 2021-03-28 | ke hadapan |
| Haiti | 2021-03-14 | ke hadapan |
| Hungary | 2021-03-28 | ke hadapan |
| Iran | 2021-03-21 | ke hadapan |
| Ireland | 2021-03-28 | ke hadapan |
| Isle of Man | 2021-03-28 | ke hadapan |
| Israel | 2021-03-26 | ke hadapan |
| Itali | 2021-03-28 | ke hadapan |
| Jerman | 2021-03-28 | ke hadapan |
| Jersey | 2021-03-28 | ke hadapan |
| Jordan | 2021-03-25 | ke hadapan |
| Kanada | 2021-03-14 | ke hadapan |
| Kepulauan Aland | 2021-03-28 | ke hadapan |
| Kepulauan Faroe | 2021-03-28 | ke hadapan |
| Kepulauan Turks dan Caicos | 2021-03-14 | ke hadapan |
| Kosovo | 2021-03-28 | ke hadapan |
| Kota Vatican | 2021-03-28 | ke hadapan |
| Latvia | 2021-03-28 | ke hadapan |
| Liechtenstein | 2021-03-28 | ke hadapan |
| Lithuania | 2021-03-28 | ke hadapan |
| Lubnan | 2021-03-27 | ke hadapan |
| Luxembourg | 2021-03-28 | ke hadapan |
| Macedonia Utara | 2021-03-28 | ke hadapan |
| Maghribi | 2021-04-11 | ke belakang |
| Malta | 2021-03-28 | ke hadapan |
| Mexico | 2021-04-04 | ke hadapan |
| Monaco | 2021-03-28 | ke hadapan |
| Montenegro | 2021-03-28 | ke hadapan |
| New Zealand | 2021-04-03 | ke belakang |
| Norway | 2021-03-28 | ke hadapan |
| Paraguay | 2021-03-28 | ke belakang |
| Perancis | 2021-03-28 | ke hadapan |
| Poland | 2021-03-28 | ke hadapan |
| Portugal | 2021-03-28 | ke hadapan |
| Pulau Norfolk | 2021-04-03 | ke belakang |
| Romania | 2021-03-28 | ke hadapan |
| Saint Pierre dan Miquelon | 2021-03-14 | ke hadapan |
| Samoa | 2021-04-03 | ke belakang |