"Wed, 15 May 2024 21:04:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240515
Only TIME
21:04:05
General datetime
2024-05-15 21:04:05Z
For Database
2024-05-15 21:04:05
For HTTP1.1
Wed, 15 May 2024 21:04:05 GMT