Daylight Saving Time–First Half of 1973

Daylight Saving Time (DST) is often incorrectly referred to as “daylight savings time”. In some countries, it is also called “summer time”. When DST is not observed, it is called standard time, normal time or winter time.

This list displays a brief (but not complete) overview showing the countries and territories which observed DST during the first half of 1973.

Current country/territory names, rather than historic country names are displayed, so the list could contain countries that did not exist at the time.

Also, please see the page for the second half of 1973 or the overview over start and end times for 1973 sorted by country.

Date	Country	Local Time Change
Jan 4 Thu	Nicaragua (All locations)	12:00 am → 1:00 am (Forward)
Jan 21 Sun	Dominican Republic (All locations)	12:00 am → 11:30 pm (Back)
Mar 4 Sun	Australia (All locations which are observing DST)	3:00 am → 2:00 am (Back)
Mar 10 Sat	Chile (Some locations)	9:00 pm → 8:00 pm (Back)
Mar 11 Sun	Chile (Most locations)	12:00 am → 11:00 pm (Back)
Mar 18 Sun	Guernsey (All locations) Ireland (All locations) Isle of Man (All locations) Jersey (All locations) United Kingdom (All locations)	2:00 am → 3:00 am (Forward)
Mar 31 Sat	Malta (All locations)	12:00 am → 1:00 am (Forward)
Apr 22 Sun	Hong Kong (All locations) Macau (All locations)	3:30 am → 4:30 am (Forward)
Apr 29 Sun	Cuba (All locations) South Sudan (All locations) Sudan (All locations)	12:00 am → 1:00 am (Forward)
Apr 29 Sun	United States (Some locations observing DST)	2:00 am → 2:00 am (No Change)
Apr 29 Sun	The Bahamas (All locations) Canada (Some locations observing DST) United States (Some locations observing DST)	2:00 am → 3:00 am (Forward)
May 1 Tue	Lebanon (All locations)	12:00 am → 1:00 am (Forward)
May 1 Tue	Egypt (All locations)	1:00 am → 2:00 am (Forward)
May 1 Tue	Syria (All locations)	2:00 am → 3:00 am (Forward)
Jun 3 Sun	Italy (All locations) San Marino (All locations) Vatican City (Holy See) (All locations)	12:00 am → 1:00 am (Forward)
Jun 3 Sun	Turkey (All locations)	1:00 am → 2:00 am (Forward)
Jun 6 Wed	Jordan (All locations)	12:00 am → 1:00 am (Forward)

Daylight Saving Time for other years
Yearly Overview	January–June	July–December
1971	first half of 1971	second half of 1971
1972	first half of 1972	second half of 1972
1973	first half of 1973	second half of 1973
1974	first half of 1974	second half of 1974
1975	first half of 1975	second half of 1975

Other years

Year:197019711972197319741975197619771978197919801981198219831984198519861987198819891990199119921993199419951996199719981999200020012002200320042005200620072008200920102011201220132014201520162017201820192020202120222023202420252026202720282029Type:Overview over the yearDetailed - first halfDetailed - second half