B40, B-40, or variant, may refer to:
HLA may refer to:
Coordinates: 36°23′15″N 127°21′59″E / 36.38753°N 127.36650°E / 36.38753; 127.36650 (HLA time signal antenna) HLA is a time signal radio station in Daejeon, South Korea, operated by the Korea Research Institute of Standards and Science. Established on November 24, 1984, it transmits a 2 kW signal on 5 MHz (±0.01 Hz). Originally only transmitted for 7 hours per day (01:00–08:00), 5 days per week (M–F), it is continuous as of 2011, There are over 100 users of the signal in Korea.
It broadcasts a time signal similar to that of the WWV and WWVH stations with which it shares a frequency: