DST of San Mateo in 2024
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
No time zone changes for San Mateo in 2024
DST of San Mateo Over Years
| Year | Commences | Abbreviations | Time Change | Offset After |
| 1950 - 1953 | No changes, UTC+0800 all of the period | |||
| 1954 | 04-12, Mon 01:00 |
PHT -> PHST | 1 hour forward (start of DST) | UTC+0900 |
| 06-30, Wed 23:00 |
PHST -> PHT | 1 hour backward (end of DST) | UTC+0800 | |
| 1955 - 1959 | No changes, UTC+0900 all of the period | |||
