• HAST Time to IST Time Converter

    HADT = UTC - 09:00

    00:43:44

    Wednesday, October 22, 2025

    IST = UTC + 01:00

    10:43:44

    Wednesday, October 22, 2025

    HADT(Hawaii-Aleutian Daylight Time) and IST(Irish Standard Time) Mapping Table
    Hawaii-Aleutian Daylight Time(HADT)Irish Standard Time(IST)
    00:0010:00
    01:0011:00
    02:0012:00
    03:0013:00
    04:0014:00
    05:0015:00
    06:0016:00
    07:0017:00
    08:0018:00
    09:0019:00
    10:0020:00
    11:0021:00
    12:0022:00
    13:0023:00
    14:0000:00+1 day
    15:0001:00+1 day
    16:0002:00+1 day
    17:0003:00+1 day
    18:0004:00+1 day
    19:0005:00+1 day
    20:0006:00+1 day
    21:0007:00+1 day
    22:0008:00+1 day
    23:0009:00+1 day

    HADT(Hawaii-Aleutian Daylight Time)

    Hawaii-Aleutian Daylight Time(HADT) is 09:00 hours behind Coordinated Universal(UTC) Time.This timezone is a Daylight Saving Time timezone and is used in: North America

    Typical City of HADT (Hawaii-Aleutian Daylight Time)

    USA - Adak (Summer)

    IST(Irish Standard Time)

    Irish Standard Time(IST) is 01:00 hours ahead of Coordinated Universal(UTC) Time.This timezone is used during standard time in: Europe

    Typical City of IST (Irish Standard Time)

    Ireland - Dublin (Summer)