| Daylight Saving Time ended | When local daylight time is about to reach Midnight between Saturday, February 6, 1988 and Sunday, February 7, 1988 clocks are turned backward 1 hour to Saturday, February 6, 1988 at 11:00:00 PM local standard time instead Seconds before and after the change:
| Local time | DST? | UTC offset | Zone name |
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| Saturday, February 6, 1988 at 11:59:57 PM | 1 hour | -4 hours | ACST | | Saturday, February 6, 1988 at 11:59:58 PM | 1 hour | -4 hours | ACST | | Saturday, February 6, 1988 at 11:59:59 PM | 1 hour | -4 hours | ACST | | Saturday, February 6, 1988 at 11:00:00 PM | No | -5 hours | ACT | | Saturday, February 6, 1988 at 11:00:01 PM | No | -5 hours | ACT | | Saturday, February 6, 1988 at 11:00:02 PM | No | -5 hours | ACT |
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