"Wed, 15 May 2024 19:59:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240515
Only TIME
19:59:51
General datetime
2024-05-15 19:59:51Z
For Database
2024-05-15 19:59:51
For HTTP1.1
Wed, 15 May 2024 19:59:51 GMT