effect-io-ai

Package: effect
Module: DateTime

DateTime.isTimeZoneOffset

Checks whether a value is an offset-based TimeZone.

When to use

Use when you need to narrow an unknown or union TimeZone value to the fixed-offset variant before reading its offset in milliseconds.

See

• isTimeZone for checking either time zone variant
• isTimeZoneNamed for narrowing to named time zones

Signature

declare const isTimeZoneOffset: (u: unknown) => u is TimeZone.Offset

Source

Since v3.6.0