Mar 15, 2009, 12:00 midnight
Jan 23
Forward 1 hour
Jan 23, 1974 - Daylight Saving Time Started
When local standard time was about to reach
Wednesday, January 23, 1974, 12:00:00 midnight clocks were turned forward 1 hour to
Wednesday, January 23, 1974, 1:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Jan 23, 1974 than the day before. There was more light in the evening.
Also called Spring Forward, Summer Time, and Daylight Savings Time.
May 1
Back 1 hour
May 1, 1974 - Daylight Saving Time Ended
When local daylight time was about to reach
Wednesday, May 1, 1974, 12:00:00 midnight clocks were turned backward 1 hour to
Tuesday, April 30, 1974, 11:00:00 pm local standard time instead.
Sunrise and sunset were about 1 hour earlier on May 1, 1974 than the day before. There was more light in the morning.
Also called Fall Back and Winter Time.
Daylight Saving Time History in Buenos Aires
Detailed history for Buenos Aires is not available before 1970. Statistics below are based on 1970 onwards.
- Buenos Aires last observed Daylight Saving Time in 2009.
- Buenos Aires has observed DST for 12 years between 1974 and 2009.
- See Worldwide DST Statistics