"Sun, 23 Jun 2024 13:40:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240623
Only TIME
13:40:34
General datetime
2024-06-23 13:40:34Z
For Database
2024-06-23 13:40:34
For HTTP1.1
Sun, 23 Jun 2024 13:40:34 GMT