"Sun, 19 May 2024 12:35:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
12:35:40
General datetime
2024-05-19 12:35:40Z
For Database
2024-05-19 12:35:40
For HTTP1.1
Sun, 19 May 2024 12:35:40 GMT