Module polars::export::arrow::temporal_conversions

Conversion methods for dates and times.

Constants

EPOCH_DAYS_FROM_CE

Number of days between 0001-01-01 and 1970-01-01

MICROSECONDS

Number of microseconds in a second

MILLISECONDS

Number of milliseconds in a second

MILLISECONDS_IN_DAY

Number of milliseconds in a day

NANOSECONDS

Number of nanoseconds in a second

SECONDS_IN_DAY

Number of seconds in a day

Functions

add_interval

Adds an interval to a timestamp in time_unit units and timezone timezone.

add_naive_interval

Adds an interval to a timestamp in time_unit units without timezone.

date32_to_date

converts a i32 representing a date32 to NaiveDate

date32_to_datetime

converts a i32 representing a date32 to NaiveDateTime

date64_to_date

converts a i64 representing a date64 to NaiveDate

date64_to_datetime

converts a i64 representing a date64 to NaiveDateTime

parse_offset

Parses an offset of the form "+WX:YZ" or "UTC" into FixedOffset.

time32ms_to_time

converts a i32 representing a time32(ms) to NaiveTime

time32s_to_time

converts a i32 representing a time32(s) to NaiveDateTime

time64ns_to_time

converts a i64 representing a time64(ns) to NaiveDateTime

time64us_to_time

converts a i64 representing a time64(us) to NaiveDateTime

timestamp_ms_to_datetime

converts a i64 representing a timestamp(ms) to NaiveDateTime

timestamp_ns_to_datetime

converts a i64 representing a timestamp(ns) to NaiveDateTime

timestamp_s_to_datetime

converts a i64 representing a timestamp(s) to NaiveDateTime

timestamp_to_datetime

Converts a timestamp in time_unit and timezone into [chrono::DateTime].

timestamp_to_naive_datetime

Converts a timestamp in time_unit and timezone into [chrono::DateTime].

timestamp_us_to_datetime

converts a i64 representing a timestamp(us) to NaiveDateTime

timeunit_scale

Calculates the scale factor between two TimeUnits. The function returns the scale that should multiply the TimeUnit “b” to have the same time scale as the TimeUnit “a”.

utf8_to_naive_timestamp_ns

Parses a Utf8Array to naive timestamp, i.e. PrimitiveArray<i64> with type Timestamp(Nanosecond, None). Timezones are ignored. Null elements remain null; non-parsable elements are set to null.

utf8_to_naive_timestamp_ns_scalar

Parses value to Option<i64> consistent with the Arrow’s definition of timestamp without timezone.

utf8_to_timestamp_ns

Parses a Utf8Array to a timeozone-aware timestamp, i.e. PrimitiveArray<i64> with type Timestamp(Nanosecond, Some(timezone)).

utf8_to_timestamp_ns_scalar

Parses value to Option<i64> consistent with the Arrow’s definition of timestamp with timezone. tz must be built from timezone (either via parse_offset or chrono-tz).