"Sun, 20 Oct 2024 19:38:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241020
Only TIME
19:38:20
General datetime
2024-10-20 19:38:20Z
For Database
2024-10-20 19:38:20
For HTTP1.1
Sun, 20 Oct 2024 19:38:20 GMT