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 |
| 1960 - 1962 | No changes, UTC-0500 all of the period | |||
| 1963 | 12-09, Mon 01:00 |
ACT -> ACST | 1 hour forward (start of DST) | UTC-0400 |
| 1964 | 02-29, Sat 23:00 |
ACST -> ACT | 1 hour backward (end of DST) | UTC-0500 |
| 1965 | 01-31, Sun 01:00 |
ACT -> ACST | 1 hour forward (start of DST) | UTC-0400 |
| 03-30, Tue 23:00 |
ACST -> ACT | 1 hour backward (end of DST) | UTC-0500 | |
| 12-01, Wed 01:00 |
ACT -> ACST | 1 hour forward (start of DST) | UTC-0400 | |
| 1966 | 02-28, Mon 23:00 |
ACST -> ACT | 1 hour backward (end of DST) | UTC-0500 |
| 11-01, Tue 01:00 |
ACT -> ACST | 1 hour forward (start of DST) | UTC-0400 | |
| 1967 | 02-28, Tue 23:00 |
ACST -> ACT | 1 hour backward (end of DST) | UTC-0500 |
| 11-01, Wed 01:00 |
ACT -> ACST | 1 hour forward (start of DST) | UTC-0400 | |
| 1968 | 02-29, Thu 23:00 |
ACST -> ACT | 1 hour backward (end of DST) | UTC-0500 |
| 1969 - 1969 | No changes, UTC-0500 all of the period | |||
