polars.Expr.dt.microsecond#

Expr.dt.microsecond() → Expr[source]#

Extract microseconds from underlying DateTime representation.

Applies to Datetime columns.

Returns:

Expr: Expression of data type UInt32.

Examples

>>> from datetime import datetime
>>> df = pl.DataFrame(
...     {
...         "date": pl.datetime_range(
...             datetime(2020, 1, 1),
...             datetime(2020, 1, 1, 0, 0, 1, 0),
...             "1ms",
...             eager=True,
...         ),
...     }
... )
>>> df.select(
...     [
...         pl.col("date"),
...         pl.col("date").dt.microsecond().alias("microseconds"),
...     ]
... )
shape: (1_001, 2)
┌─────────────────────────┬──────────────┐
│ date                    ┆ microseconds │
│ ---                     ┆ ---          │
│ datetime[μs]            ┆ u32          │
╞═════════════════════════╪══════════════╡
│ 2020-01-01 00:00:00     ┆ 0            │
│ 2020-01-01 00:00:00.001 ┆ 1000         │
│ 2020-01-01 00:00:00.002 ┆ 2000         │
│ 2020-01-01 00:00:00.003 ┆ 3000         │
│ …                       ┆ …            │
│ 2020-01-01 00:00:00.997 ┆ 997000       │
│ 2020-01-01 00:00:00.998 ┆ 998000       │
│ 2020-01-01 00:00:00.999 ┆ 999000       │
│ 2020-01-01 00:00:01     ┆ 0            │
└─────────────────────────┴──────────────┘