Oct 9, 1988, 3:00 am
| Start DST: | Sunday, May 4, 1958 — 1 hour forward |
|---|---|
| End DST: | Saturday, September 20, 1958 — 1 hour backward |
May 4
Forward 1 hour
May 4, 1958 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, May 4, 1958, 12:00:00 midnight clocks were turned forward 1 hour to
Sunday, May 4, 1958, 1:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on May 4, 1958 than the day before. There was more light in the evening.
Also called Spring Forward, Summer Time, and Daylight Savings Time.
Sep 21
Back 1 hour
Sep 21, 1958 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, September 21, 1958, 12:00:00 midnight clocks were turned backward 1 hour to
Saturday, September 20, 1958, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on Sep 21, 1958 than the day before. There was more light in the morning.
Also called Fall Back and Winter Time.
Daylight Saving Time in Other Years
DST changes do not necessarily occur on the same date every year.
| Year | DST Start (Clock Forward) | DST End (Clock Backward) |
|---|---|---|
| 1950 | Saturday, April 1, 12:00 midnight | Sunday, September 10, 12:00 midnight |
| 1951 | Sunday, May 6, 12:00 midnight | Sunday, September 9, 12:00 midnight |
| 1952 — 1954 | DST not observed | |
| 1955 | Thursday, May 5, 12:00 midnight | Friday, September 9, 12:00 midnight |
| 1956 | Sunday, May 20, 12:00 midnight | Sunday, September 30, 12:00 midnight |
| 1957 | Sunday, May 5, 12:00 midnight | Sunday, September 22, 12:00 midnight |
| 1958 | Sunday, May 4, 12:00 midnight | Sunday, September 21, 12:00 midnight |
| 1959 | Sunday, May 3, 12:00 midnight | Sunday, September 20, 12:00 midnight |
| All times are local for Seoul. | ||