"Sun, 19 Jan 2025 16:25:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
16:25:20
General datetime
2025-01-19 16:25:20Z
For Database
2025-01-19 16:25:20
For HTTP1.1
Sun, 19 Jan 2025 16:25:20 GMT