"Sun, 30 Jun 2024 15:58:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240630
Only TIME
15:58:21
General datetime
2024-06-30 15:58:21Z
For Database
2024-06-30 15:58:21
For HTTP1.1
Sun, 30 Jun 2024 15:58:21 GMT