和 ChatGPT 请教和纠错

来源: baydad 于 2024-03-04 15:43:56 [档案] [旧帖] [给我悄悄话] 本文已被阅读：次 (1760 bytes)

现在很懒。有点要动脑的就叫ChatGPT帮忙。下面是叫她帮我转换一个时间。她告诉我有个夏令时问题。但算错了：

what is the PST for this: 2024-03-26T20:00:00.000+00:00

ChatGPT
To convert the given timestamp from Coordinated Universal Time (UTC) to Pacific Standard Time (PST), you need to account for the time difference between UTC and PST and any potential daylight saving time changes. As of my last update in January 2022, Pacific Standard Time (PST) is 8 hours behind Coordinated Universal Time (UTC-8). However, during daylight saving time (which typically starts on the second Sunday in March and ends on the first Sunday in November), it becomes Pacific Daylight Time (PDT) and is 7 hours behind UTC (UTC-7).

Given the timestamp "2024-03-26T20:00:00.000+00:00", it's already in UTC format. To convert it to PST, you subtract 8 hours (since it's outside daylight saving time) from the given time:

20:00 UTC - 8 hours = 12:00 PST
So, the corresponding time in Pacific Standard Time (PST) for "2024-03-26T20:00:00.000+00:00" is 12:00 PM (noon) on March 26, 2024.
User
but the day is March 26, should it be 7 hours behind UTC instead?

ChatGPT
You are correct. My apologies for the oversight. As of my last update in January 2022, March 26th falls within Pacific Daylight Time (PDT), not Pacific Standard Time (PST). During daylight saving time, which typically starts on the second Sunday in March, Pacific Time is 7 hours behind Coordinated Universal Time (UTC-7), not 8 hours behind.