wxiaoguang e743570f65 Refactor timeutil package (#28623)
1. make names more readable
2. remove unused FormatLong/FormatShort
3. use `FormatDate` instead of `Format "2006-01-02"`
2023-12-28 10:09:57 +00:00
..
2023-10-10 15:33:56 +00:00
2023-11-06 08:22:39 +00:00