September 2021 Daylight Saving Time Calendar

	September - 2021
			1	2	3	Easter Island +1h. at 22:00 → 23:00
Chile +1h. at 00:00 → 01:00	6	New Moon at 00:51 am UTC=0h.	8	9	10	11
12	13	14	15	16	17	18
19	Full Moon at 11:54 pm UTC=0h.	21	Iran (Tehran) -1h. at 00:00 → 23:00	23	24	25
New Zealand +1h. at 02:00 → 03:00 Chatham Islands +1h at 02:45 → 03:45 Samoa DST Cancelled	27	28	29	30



2020 - 2021 - 2022 - 2023 - 2024

September 2021 dailyght saving time

Starts + 1h.	Ends - 1h.

22-Marzo Miér. 00:00 → 01:00 22-Sept. Vier. 00:00 → 23:00
Southern hemisphere
The Southern Hemisphere reverses the order of the time change in relation to the Northern Hemisphere and vice versa. The hour is moved forward and backward in reverse, according to their seasons of the year, which are opposite.
backward	forward
Ends - 1h.	Starts + 1h.

Apr. 3 Sat. 22:00→ 21:00 Set. 4 Sat. 22:00→ 23:00

Apr. 4 Sun. 0:00 → 23:00 Set. 5 Sun. 0:00 → 01:00

Apr. 4 Sun. 3:00 → 2:00 Sep. 26 Sun. 2:00 → 3:00

Apr. 4 Sun. 3:45 → 2:45 Sep. 26 Sun. 2:45 → 3:45

Apr. 4 Sun. 4:00 → 3:00 Sep. 26 Sun. Cancelled

No time change in Ulaanbaatar and Hovd, Mongolia. DST ended September 23, 2016 at 00h. when the clock was 1 hour back, at 00h it was 23h. the previous day.

No Time change in Windhoek, Namibia. September 3, 2017 changed its time zone, when at 2 o'clock. the clock was 1 hour forward.

DST colors in the calendar

New Moon Full Moon

All countries with DST, forward or backward 1 hour:except Lord Howe Island to the east of Australia that forward and backwards 00:30'

Mexico makes 2 time changes: one in the period April-October (for most of the country) and another in March-November for the border cities with US, adapting its time zone with the United States.