pub fn to_datetime(series: &Series) -> Result<Series, FrameError>Expand description
Convert a Series of strings or integers to normalized ISO 8601 datetime strings.
Matches pd.to_datetime(series). Since FrankenPandas stores datetimes as
Utf8 (ISO 8601 strings), this function normalizes various input formats:
- ISO 8601: “2024-01-15”, “2024-01-15T10:30:00”, “2024-01-15 10:30:00”
- Date-only with slashes: “2024/01/15”, “01/15/2024”
- Epoch seconds (Int64): Unix timestamp integers
- Epoch milliseconds (Int64 > 1e11): Auto-detected as ms
Optional format parameter provides explicit format string (subset of
strftime: %Y, %m, %d, %H, %M, %S).
Missing/unparseable values become Null.