"Wed, 29 May 2024 18:21:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240529
Only TIME
18:21:21
General datetime
2024-05-29 18:21:21Z
For Database
2024-05-29 18:21:21
For HTTP1.1
Wed, 29 May 2024 18:21:21 GMT