"Sat, 28 Jun 2025 19:05:32"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250628
Only TIME
19:05:32
General datetime
2025-06-28 19:05:32Z
For Database
2025-06-28 19:05:32
For HTTP1.1
Sat, 28 Jun 2025 19:05:32 GMT