| Current: | HKT — Hong Kong Time |
|---|---|
| Current Offset: | UTC/GMT +8 hours |
| Difference: | 13 hours ahead of Columbus |
1973 Time Zones - Round Island
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
The graph above illustrates clock changes in Round Island during 1973.
Time Changes in Round Island Over the Years
Daylight Saving Time (DST) changes do not necessarily occur on the same date every year.
| Year | Date & Time | Abbreviation | Time Change | Offset After |
|---|---|---|---|---|
| 1970 | Sun, Apr 19 at 3:30 am | HKT → HKST | +1 hour (DST start) | UTC+9h |
| Sun, Oct 18 at 3:30 am | HKST → HKT | -1 hour (DST end) | UTC+8h | |
| 1971 | Sun, Apr 18 at 3:30 am | HKT → HKST | +1 hour (DST start) | UTC+9h |
| Sun, Oct 17 at 3:30 am | HKST → HKT | -1 hour (DST end) | UTC+8h | |
| 1972 | Sun, Apr 16 at 3:30 am | HKT → HKST | +1 hour (DST start) | UTC+9h |
| Sun, Oct 22 at 3:30 am | HKST → HKT | -1 hour (DST end) | UTC+8h | |
| 1973 | Sun, Apr 22 at 3:30 am | HKT → HKST | +1 hour (DST start) | UTC+9h |
| Sun, Oct 21 at 3:30 am | HKST → HKT | -1 hour (DST end) | UTC+8h | |
| Sun, Dec 30 at 3:30 am | HKT → HKST | +1 hour (DST start) | UTC+9h | |
| 1974 | Sun, Oct 20 at 3:30 am | HKST → HKT | -1 hour (DST end) | UTC+8h |
| 1975 | Sun, Apr 20 at 3:30 am | HKT → HKST | +1 hour (DST start) | UTC+9h |
| Sun, Oct 19 at 3:30 am | HKST → HKT | -1 hour (DST end) | UTC+8h | |
| 1976 | Sun, Apr 18 at 3:30 am | HKT → HKST | +1 hour (DST start) | UTC+9h |
| Sun, Oct 17 at 3:30 am | HKST → HKT | -1 hour (DST end) | UTC+8h | |
| 1977 — 1978 | No changes, UTC +8 hours all of the period | |||
| 1979 | Sun, May 13 at 3:30 am | HKT → HKST | +1 hour (DST start) | UTC+9h |
| Sun, Oct 21 at 3:30 am | HKST → HKT | -1 hour (DST end) | UTC+8h | |
| * All times are local Round Island time. | ||||
Data for the years before 1970 is not available for Round Island, however, we have earlier time zone history for Hong Kong available.
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Round Island
Hong Kong
4:3020pm
Saturday, December 6, 2025