| Year : 1921 - Quesada Costa Rica |
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| Back to standard time on friday 14 january 1921 23 h 36 (GMT - 6 h ) CST |
| Year : 1979 - Quesada Costa Rica |
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| Transition to daylight saving time on sunday 25 february 1979 01 h 00 (GMT - 5 h ) CDT |
| Back to standard time on saturday 02 june 1979 23 h 00 (GMT - 6 h ) CST |
| Year : 1980 - Quesada Costa Rica |
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| Transition to daylight saving time on sunday 24 february 1980 01 h 00 (GMT - 5 h ) CDT |
| Back to standard time on saturday 31 may 1980 23 h 00 (GMT - 6 h ) CST |
| Year : 1991 - Quesada Costa Rica |
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| Transition to daylight saving time on saturday 19 january 1991 01 h 00 (GMT - 5 h ) CDT |
| Back to standard time on sunday 30 june 1991 23 h 00 (GMT - 6 h ) CST |
| Year : 1992 - Quesada Costa Rica |
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| Transition to daylight saving time on saturday 18 january 1992 01 h 00 (GMT - 5 h ) CDT |
| Back to standard time on saturday 14 march 1992 23 h 00 (GMT - 6 h ) CST |
