• KST Time to IRST Time Converter

    KST = UTC + 09:00

    01:37:27

    Sunday, May 11, 2025

    IRDT = UTC + 04:30

    21:07:27

    Saturday, May 10, 2025

    KST(Korea Standard Time) and IRDT(Iran Daylight Time) Mapping Table
    Korea Standard Time(KST)Iran Daylight Time(IRDT)
    00:0019:30-1 day
    01:0020:30-1 day
    02:0021:30-1 day
    03:0022:30-1 day
    04:0023:30-1 day
    05:0000:30
    06:0001:30
    07:0002:30
    08:0003:30
    09:0004:30
    10:0005:30
    11:0006:30
    12:0007:30
    13:0008:30
    14:0009:30
    15:0010:30
    16:0011:30
    17:0012:30
    18:0013:30
    19:0014:30
    20:0015:30
    21:0016:30
    22:0017:30
    23:0018:30

    KST(Korea Standard Time)

    Korea Standard Time(KST) is 09:00 hours ahead of Coordinated Universal(UTC) Time.This timezone is used during standard time in: Asia

    Typical City of KST (Korea Standard Time)

    South Korea - Seoul (All Year)

    IRDT(Iran Daylight Time)

    Iran Daylight Time(IRDT) is 04:30 hours ahead of Coordinated Universal(UTC) Time.This timezone is a Daylight Saving Time timezone and is used in: AsiaIran Daylight Time is a half-hour time zone. Its local time differs by 30 minutes instead of the normal whole hour.

    Typical City of IRDT (Iran Daylight Time)

    Iran - Tehran (Summer)