"Sun, 19 May 2024 09:40:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
09:40:35
General datetime
2024-05-19 09:40:35Z
For Database
2024-05-19 09:40:35
For HTTP1.1
Sun, 19 May 2024 09:40:35 GMT