"Sun, 19 May 2024 12:34:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
12:34:20
General datetime
2024-05-19 12:34:20Z
For Database
2024-05-19 12:34:20
For HTTP1.1
Sun, 19 May 2024 12:34:20 GMT