How Many Weeks Until First Day of Spring 2027?
First Day of Spring 2027 falls on Saturday, March 20, 2027.
First Day of Spring 2027 falls on Saturday, March 20, 2027 — a Saturday. As of today that is 148 days, or 21 weeks and 1 day. The table below lists every "weeks to go" milestone between now and the date, so you can work backwards from the day itself instead of counting forward from today.
| Weeks to go | Starts on |
|---|---|
| 21 | Sat 24 Oct 2026 |
| 20 | Sat 31 Oct 2026 |
| 19 | Sat 07 Nov 2026 |
| 18 | Sat 14 Nov 2026 |
| 17 | Sat 21 Nov 2026 |
| 16 | Sat 28 Nov 2026 |
| 15 | Sat 05 Dec 2026 |
| 14 | Sat 12 Dec 2026 |
| 13 | Sat 19 Dec 2026 |
| 12 | Sat 26 Dec 2026 |
| 11 | Sat 02 Jan 2027 |
| 10 | Sat 09 Jan 2027 |
| 9 | Sat 16 Jan 2027 |
| 8 | Sat 23 Jan 2027 |
| 7 | Sat 30 Jan 2027 |
| 6 | Sat 06 Feb 2027 |
| 5 | Sat 13 Feb 2027 |
| 4 | Sat 20 Feb 2027 |
| 3 | Sat 27 Feb 2027 |
| 2 | Sat 06 Mar 2027 |
| 1 | Sat 13 Mar 2027 |
Why the week count moves the way it does
Weeks are the unit people actually plan in. Deadlines, notice periods and rotas run in weeks, which is why a week count tends to be more useful than a raw day count once you are more than a fortnight out. Note that the two figures answer slightly different questions: "how many weeks" is full weeks only, while "weeks and days" keeps the remainder.
About First Day of Spring 2027
The march equinox of 2027 falls on March 20, 2027 at 20:23 UTC — the astronomical start of spring in the Northern Hemisphere (autumn below the equator).
Astronomically, this is the moment the Sun crosses the celestial equator heading north — autumn in the Southern Hemisphere. It is also the day the tide of daylight turns: after the March solstice the change is barely minutes per week, then accelerates — the reason the weeks after a solstice feel darker (or lighter) faster than the solstice day itself.
Quick facts
| Exact moment (UTC) | March 20, 2027 · 20:23 |
|---|---|
| Event | March Equinox |
| Hemisphere note | Seasons flip in the Southern Hemisphere |