Sep 28, 2025, 2:00 am
| End DST: | Sunday, March 21, 1999 — 1 hour backward |
|---|---|
| Start DST: | Sunday, October 3, 1999 — 1 hour forward |
Mar 21
Back 1 hour
Mar 21, 1999 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, March 21, 1999, 3:00:00 am clocks were turned backward 1 hour to
Sunday, March 21, 1999, 2:00:00 am local standard time instead.
Sunrise and sunset were about 1 hour earlier on Mar 21, 1999 than the day before. There was more light in the morning and less light in the evening.
Also called Fall Back and Winter Time.
Oct 3
Forward 1 hour
Oct 3, 1999 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, October 3, 1999, 2:00:00 am clocks were turned forward 1 hour to
Sunday, October 3, 1999, 3:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Oct 3, 1999 than the day before. There was more light in the evening and less light in the morning.
Also called Spring Forward, Summer Time, and Daylight Savings Time.
Daylight Saving Time in Other Years
DST changes do not necessarily occur on the same date every year.
| Year | DST End (Clock Backward) | DST Start (Clock Forward) |
|---|---|---|
| 1990 | Sunday, March 18, 3:00 am | Sunday, October 7, 2:00 am |
| 1991 | Sunday, March 17, 3:00 am | Sunday, October 6, 2:00 am |
| 1992 | Sunday, March 15, 3:00 am | Sunday, October 4, 2:00 am |
| 1993 | Sunday, March 21, 3:00 am | Sunday, October 3, 2:00 am |
| 1994 | Sunday, March 20, 3:00 am | Sunday, October 2, 2:00 am |
| 1995 | Sunday, March 19, 3:00 am | Sunday, October 1, 2:00 am |
| 1996 | Sunday, March 17, 3:00 am | Sunday, October 6, 2:00 am |
| 1997 | Sunday, March 16, 3:00 am | Sunday, October 5, 2:00 am |
| 1998 | Sunday, March 15, 3:00 am | Sunday, October 4, 2:00 am |
| 1999 | Sunday, March 21, 3:00 am | Sunday, October 3, 2:00 am |
| All times are local for Mario Zucchelli Station. | ||
Data for the years before 1970 is not available for Mario Zucchelli Station, however, we have earlier time zone history for McMurdo available.
Detailed time zone and clock changes in Mario Zucchelli Station