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What is the meaning of the abbreviation "H24"?

  • A

    Sunset to sunrise.

  • B

    24 h service.

  • C

    No specific opening times.

  • D

    Sunrise to sunset.

Refer to figure.
ICAO Doc 8400 - ICAO Abbreviations and Codes
ABBREVIATIONS

H24 → Continuous day and night service
HJ → Sunrise to sunset
HN → Sunset to sunrise
HS → Service available during hours of scheduled operations
HX → No specific working hours

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