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