DST of Rio Branco in 2024
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
No time zone changes for Rio Branco in 2024
DST of Rio Branco Over Years
| Year | Commences | Abbreviations | Time Change | Offset After |
| 1950 | 04-16, Sun 00:00 |
ACST -> ACT | 1 hour backward (end of DST) | UTC-0500 |
| 12-01, Fri 01:00 |
ACT -> ACST | 1 hour forward (start of DST) | UTC-0400 | |
| 1951 | 03-31, Sat 23:00 |
ACST -> ACT | 1 hour backward (end of DST) | UTC-0500 |
| 12-01, Sat 01:00 |
ACT -> ACST | 1 hour forward (start of DST) | UTC-0400 | |
| 1952 | 03-31, Mon 23:00 |
ACST -> ACT | 1 hour backward (end of DST) | UTC-0500 |
| 12-01, Mon 01:00 |
ACT -> ACST | 1 hour forward (start of DST) | UTC-0400 | |
| 1953 | 02-28, Sat 23:00 |
ACST -> ACT | 1 hour backward (end of DST) | UTC-0500 |
| 1954 - 1959 | No changes, UTC-0500 all of the period | |||
