Feb 7, 1988, 12:00 midnight
| End DST: | Monday, February 28, 1966 — 1 hour backward |
|---|---|
| Start DST: | Tuesday, November 1, 1966 — 1 hour forward |
Mar 1
Back 1 hour
Mar 1, 1966 - Daylight Saving Time Ended
When local daylight time was about to reach
Tuesday, March 1, 1966, 12:00:00 midnight clocks were turned backward 1 hour to
Monday, February 28, 1966, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on Mar 1, 1966 than the day before. There was more light in the morning and less light in the evening.
Also called Fall Back and Winter Time.
More info:
Sunday, February 17, 2013: Brazil ends Daylight Saving Time
Nov 1
Forward 1 hour
Nov 1, 1966 - Daylight Saving Time Started
When local standard time was about to reach
Tuesday, November 1, 1966, 12:00:00 midnight clocks were turned forward 1 hour to
Tuesday, November 1, 1966, 1:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Nov 1, 1966 than the day before. There was more light in the evening and less light in the morning.
Also called Spring Forward, Summer Time, and Daylight Savings Time.
More info:
Sunday, February 17, 2013: Brazil ends Daylight Saving Time
Daylight Saving Time in Other Years
DST changes do not necessarily occur on the same date every year.
| Year | DST End (Clock Backward) | DST Start (Clock Forward) |
|---|---|---|
| 1960 — 1962 | DST not observed | |
| 1963 | No DST End | Monday, December 9, 12:00 midnight |
| 1964 | Sunday, March 1, 12:00 midnight | No DST Start |
| * 1965 | Wednesday, March 31, 12:00 midnight | Sunday, January 31, 12:00 midnight |
| 1966 | Tuesday, March 1, 12:00 midnight | Tuesday, November 1, 12:00 midnight |
| 1967 | Wednesday, March 1, 12:00 midnight | Wednesday, November 1, 12:00 midnight |
| 1968 | Friday, March 1, 12:00 midnight | No DST Start |
| 1969 | DST not observed | |
| All times are local for Rio Branco. * All or part of this period was on double DST. | ||