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Clock Changes in San Juan, Puerto Rico 1999

Last change: 1945
Sep
30
1 hour Back

Sep 30, 1945, 2:00 am

No further time changes in 1999 in San Juan
Location of San JuanLocation

Daylight Saving Time (DST) Not Observed in Year 1999

Puerto Rico observed Atlantic Standard Time (AST) all year.

DST was not in use in 1999.

The previous DST change in San Juan, Puerto Rico was on September 30, 1945.

Try selecting a different year below.

Which countries & states use DST and which do not?

Other years: 1942 | 1943 | 1944 | 1945 |

Daylight Saving Time in Other Years

DST changes do not necessarily occur on the same date every year.

YearDST Start (Clock Forward)DST End (Clock Backward)
1990 — 1999DST not observed
All times are local for San Juan.

Detailed time zone and clock changes in San Juan