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The abbreviation "HX" stands for...
  • A
    Sunset to Sunrise.
  • B
    Sunrise to Sunset.
  • C
    No specific working hours.
  • D
    Continuous day and night service.

ICAO Doc 8400
ICAO Abbreviations and Codes

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

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