如何从 MySQL 中的日期时间中减去小时数?
我得到一个日期时间字段，它当前在查询中为:
I get a datetime field, that's currently in the query as:
SELECT DATE_FORMAT(x.date_entered, '%Y-%m-%d') AS date FROM x ORDER BY date ASC
我想要做的是从那个日期减去 3 小时(格林威治标准时间问题)，但我不能在 PHP 中做到这一点，因为 PHP 只知道日期部分，而不知道时间.
What I want to do is to subtract 3 hours from that date (GMT issues), but I can't do it in PHP as PHP only knows the date part, not the time.
推荐答案
mySQL 具有 DATE_SUB():
mySQL has DATE_SUB():
SELECT DATE_SUB(column, INTERVAL 3 HOUR)....
但是尝试解决潜在的时区问题不是更好吗?
but would it not be better to try and sort out the underlying time zone issue instead?
相关文章