VLF Time Broadcasts
VLF Time Signal Stations
Station List Compiled by William Hepburn, LWCA
Standard Time Signal Broadcast Channels
Frequency  (kHz)
20
25
50
 
 
Note: Included are broadcasts from national time observatory official time signal stations only. This list does not include routine time checks made by standard broadcast, maritime or aeronautical stations.
 TS  Time Signal (CW)
 Inactive or Planned Service
Mode = Modulated CW Time Markers.
20 25 40
 50 60 66.667 68.5 77.5 100
Time Signals Update 2012-10-26

New Stations
 68.5 kHz   BPC   Henan, CHN
100   kHz   BPL   Shaanxi, CHN

Stations Decommissoned
 75 kHz     HBG   Prangins, SUI
 20 kHz
ID Time
Call Sign
State
Station Name
Latitude
Longitude
 BC Times UTC / Remarks

JG2AR JPN Tokyo 35 42 139 31  Off The Air

 WWVL USA  Fort Collins, CO 40 40 51
 -105 03 00  Off The Air

 25 kHz  (time division 20.5 - 23.0 - 25.0 - 25.1 - 25.5 kHz)
ID Time
Call Sign
State
Station Name
Latitude
Longitude
 BC Times UTC / Remarks
H + 06
 RAB 99
 RUS
  Khabarovsk, RU
 48 30
 134 50
  0206-0236 , 0606-0636Z *
H + 06
 RJH 63 RUS  Krasnodar, RU 44 46
 39 34  1106-1140Z *
H + 06
 RJH 69 BLR  Molodechno 54 28
 26 47  0706-0747Z *
H + 06
 RJH 77 RUS  Archangel, RU
 64 22
 41 35  0906-0947Z *
H + 06
 RJH 86 KGZ  Bishkek 43 03
 73 37  0406-0447Z , 1006-1047Z *
H + 06
 RJH 90 RUS  Nizniy Novgorod, RU
 56 11
 43 57  0806-0847Z *

 40 kHz
ID Time
Call Sign
State
Station Name
Latitude
Longitude
 BC Times UTC / Remarks
H + 15 , 45
JJY JPN Ohtakadoya-yama 37 22 10
140 51 09  Cont

 50 kHz
ID Time
Call Sign
State
Station Name
Latitude
Longitude
 BC Times UTC / Remarks
H + 05
 RTZ RUS  Irkutsk, RU 52 26
 103 41  Cont exc 1900-2000Z *

 60 kHz
ID Time
Call Sign
State
Station Name
Latitude
Longitude
 BC Times UTC / Remarks
?
 JJY JPN  Hagane-yama 33 27 56
 130 10 34
  Cont
time markers
 MSF
 ENG
  Anthorn
 54 54 28
 -03 16 26
  Cont
time markers
 WWVB
 USA
  Fort Collins, CO
 40 40 28
 -105 02 40  Cont

 66.667 kHz
ID Time
Call Sign
State
Station Name
Latitude
Longitude
 BC Times UTC / Remarks
H + 05
 RBU RUS  Moscow, RU 56 44
 37 40
  Cont

 68.5 kHz
ID Time
Call Sign
State
Station Name
Latitude
Longitude
 BC Times UTC / Remarks
time markers
 BPC CHN  Henan
 34 27 25
 115 50 13
  0100-0900 , 1300-2100Z

 77.5 kHz
ID Time
Call Sign
State
Station Name
Latitude
Longitude
 BC Times UTC / Remarks
time markers
 DCF 77 DEU  Mainflingen, HE
 50 00 56
 09 00 31
  Cont

 100 kHz
ID Time
Call Sign
State
Station Name
Latitude
Longitude
 BC Times UTC / Remarks
time markers
 BPL CHN  Shaanxi
 35 01
 109 31
  0530-1330Z
* One hour earlier when DT in effect: BLR / KGZ / RUS = last Sat in Mar-last Sat in Oct.
Notes:
ID Time: "time markers" indicates no ID, just time pips.
Broadcast Times: "H +" = min past hr. Cont = Continuous. Z=UTC.
State: Primary code is 3-letter ITU Country Code (single letter codes replaced by ISO Code).
    Secondary code included for federative states, dependencies, etc using postal abbreviation or
    equivalent.
Lat/Long: Latitude/Longitude in °  '  " (degrees/minutes/seconds). N/S/E/W specified in header. 
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©1993-2012. William R. Hepburn