polars.Series.dt.ordinal_day#
- Series.dt.ordinal_day() Series [source]#
Extract ordinal day from underlying date representation.
Applies to Date and Datetime columns.
Returns the day of year starting from 1. The return value ranges from 1 to 366. (The last day of year differs by years.)
- Returns:
- Ordinal day as UInt32
Examples
>>> from datetime import datetime >>> start = datetime(2001, 1, 1) >>> stop = datetime(2001, 3, 1) >>> date = pl.date_range(start, stop, interval="1mo") >>> date shape: (3,) Series: '' [datetime[μs]] [ 2001-01-01 00:00:00 2001-02-01 00:00:00 2001-03-01 00:00:00 ] >>> date.dt.ordinal_day() shape: (3,) Series: '' [u32] [ 1 32 60 ]