* [ polars.Expr.str.to_uppercase ](../../expressions/api/polars.Expr.str.to_uppercase.html)
      * [ polars.Expr.str.zfill ](../../expressions/api/polars.Expr.str.zfill.html)
    * [ Struct ](../../expressions/struct.html) __
      * [ polars.Expr.struct.field ](../../expressions/api/polars.Expr.struct.field.html)
      * [ polars.Expr.struct.json_encode ](../../expressions/api/polars.Expr.struct.json_encode.html)
      * [ polars.Expr.struct.rename_fields ](../../expressions/api/polars.Expr.struct.rename_fields.html)
    * [ Temporal ](../../expressions/temporal.html) __
      * [ polars.Expr.dt.add_business_days ](../../expressions/api/polars.Expr.dt.add_business_days.html)
      * [ polars.Expr.dt.base_utc_offset ](../../expressions/api/polars.Expr.dt.base_utc_offset.html)
      * [ polars.Expr.dt.cast_time_unit ](../../expressions/api/polars.Expr.dt.cast_time_unit.html)
      * [ polars.Expr.dt.century ](../../expressions/api/polars.Expr.dt.century.html)
      * [ polars.Expr.dt.combine ](../../expressions/api/polars.Expr.dt.combine.html)
      * [ polars.Expr.dt.convert_time_zone ](../../expressions/api/polars.Expr.dt.convert_time_zone.html)
      * [ polars.Expr.dt.date ](../../expressions/api/polars.Expr.dt.date.html)
      * [ polars.Expr.dt.datetime ](../../expressions/api/polars.Expr.dt.datetime.html)
      * [ polars.Expr.dt.day ](../../expressions/api/polars.Expr.dt.day.html)
      * [ polars.Expr.dt.days ](../../expressions/api/polars.Expr.dt.days.html)
      * [ polars.Expr.dt.dst_offset ](../../expressions/api/polars.Expr.dt.dst_offset.html)
      * [ polars.Expr.dt.epoch ](../../expressions/api/polars.Expr.dt.epoch.html)
      * [ polars.Expr.dt.hour ](../../expressions/api/polars.Expr.dt.hour.html)
      * [ polars.Expr.dt.hours ](../../expressions/api/polars.Expr.dt.hours.html)
      * [ polars.Expr.dt.is_leap_year ](../../expressions/api/polars.Expr.dt.is_leap_year.html)
      * [ polars.Expr.dt.iso_year ](../../expressions/api/polars.Expr.dt.iso_year.html)
      * [ polars.Expr.dt.microsecond ](../../expressions/api/polars.Expr.dt.microsecond.html)
      * [ polars.Expr.dt.microseconds ](../../expressions/api/polars.Expr.dt.microseconds.html)
      * [ polars.Expr.dt.millennium ](../../expressions/api/polars.Expr.dt.millennium.html)
      * [ polars.Expr.dt.millisecond ](../../expressions/api/polars.Expr.dt.millisecond.html)
      * [ polars.Expr.dt.milliseconds ](../../expressions/api/polars.Expr.dt.milliseconds.html)
      * [ polars.Expr.dt.minute ](../../expressions/api/polars.Expr.dt.minute.html)
      * [ polars.Expr.dt.minutes ](../../expressions/api/polars.Expr.dt.minutes.html)
      * [ polars.Expr.dt.month ](../../expressions/api/polars.Expr.dt.month.html)
      * [ polars.Expr.dt.month_end ](../../expressions/api/polars.Expr.dt.month_end.html)
      * [ polars.Expr.dt.month_start ](../../expressions/api/polars.Expr.dt.month_start.html)
      * [ polars.Expr.dt.nanosecond ](../../expressions/api/polars.Expr.dt.nanosecond.html)
      * [ polars.Expr.dt.nanoseconds ](../../expressions/api/polars.Expr.dt.nanoseconds.html)
      * [ polars.Expr.dt.offset_by ](../../expressions/api/polars.Expr.dt.offset_by.html)
      * [ polars.Expr.dt.ordinal_day ](../../expressions/api/polars.Expr.dt.ordinal_day.html)
      * [ polars.Expr.dt.quarter ](../../expressions/api/polars.Expr.dt.quarter.html)
      * [ polars.Expr.dt.replace_time_zone ](../../expressions/api/polars.Expr.dt.replace_time_zone.html)
      * [ polars.Expr.dt.round ](../../expressions/api/polars.Expr.dt.round.html)
      * [ polars.Expr.dt.second ](../../expressions/api/polars.Expr.dt.second.html)
      * [ polars.Expr.dt.seconds ](../../expressions/api/polars.Expr.dt.seconds.html)
      * [ polars.Expr.dt.strftime ](../../expressions/api/polars.Expr.dt.strftime.html)
      * [ polars.Expr.dt.time ](../../expressions/api/polars.Expr.dt.time.html)
      * [ polars.Expr.dt.timestamp ](../../expressions/api/polars.Expr.dt.timestamp.html)