Time Signal and Standard Frequency Stations :
For many radio listeners, this was the only 'legal' attempt
for listening to utility stations. When all other stations were
illegal to listen to, time signal and standard frequency stations
always were legal, and publications noted them as a normal part
of the radio spectrum. So, many utility dxers started their career
with hunting for these signals...:
Today, the importance of these transmissions to the scientific community has decreased, on the other hand, there is now more public use. For example, in many countries you may operate 'radio-controlled' clocks, which often derive their time from the longwave stations listed here. Also, some shortwave radios have a distinct 'WWV' preset function to present you their actual time announcement.
Now, with this latest update (December 2011), there are a few stations included, that are no real 'time signal stations' at all. The one is a station from the US - Defence Civil Preparedness Agency, which was transmitting time announcements, but who's real purpose was to be able to survive an atomic war, and to give instructions for those few still alive. The other station is from Uruguay - they did not have their own 'voice mirror', they used their local telephone time announcement for identification and adjustment on international radiotelephone circuits. That's why they were know as 'La Senal...'
There is an official list of time signal stations, which is quite informative. But please be aware, that some official institutions pass changes of their stations a little bit slowly to international organizations. And please keep in mind, that this is an annually renewed list - but this link may help you to find next year's list!
Europe TS Molodecno (RJH69) BLR-42 Academy of Science, Praha (OMA) CZE-240 DHI Hydrographic Institute Hamburg (DAN / DAO) D-2308 PTB Braunschweig (DCF77) D-3054 TS Nauen (Y3S) DDR-510 Ny Cadiz (EBC) E-569 Observatoire de Paris (FTA) F-2351 PTT Bagneux (FFH) F-2312 MIKES Espoo FIN-366 NPL Teddington (MSF) G-293 Royal Greenwich Observatory, London G-358 Amici di ITALCABLE Time Signal Station I-560 IEN Torino (IBF) I-215 PT Roma TS, (IAM) I-391 TS Arkhangelsk (RJH77) RUS-8884 TS Krasnodar (RJH63) RUS-4334 TS Moskva (RBU / RWM) RUS-4214 TS Nizhniy Novgorod (RJH90) RUS-6091 Observatoire Neuchatel (HBG) SUI-28 Africa NPL Pretoria (ZUO) AFS-710 Asia SAO Lintong (BPM) CHN-267 Shanghai Observatory (BPV) CHN-289 Royal Observatory Hongkong HKG-40 NPL New Delhi (ATA) IND-213 RRL Tokyo (JJY) J-235 TS Bishkek (RJH66) KGZ-42 KSRI Taejon (HLA) KOR-450 TS Irkutsk(RID) RUS-8886 TS Novosibirsk (RTA) RUS-8892 TS Chung-Li (BSF) TWN-270 TS Tashkent (RCH / ULA4) UZB-280 North America NRC Ottawa (CHU) CAN-5300 Defence Civil Preparedness Agency, Chase, MD (WGU20) USA-3494 NBS Fort Collins, CO (WWV) USA-9208 South America IGMA Buenos Aires (LQB) ARG-295 Observatorio Naval Buenos Aires (LOL) ARG-280 Observatorio Nacional, Rio de Janeiro (PPE) B-415 Ny Valparaiso (CCV) CHL-279 IOA Guayaquil (HD2IOA) EQA-250 Ny Callao (OBC3) PRU-310 ANTEL Montevideo 'La Senal' URG-410 Observatorio Cagigal, Caracas, (YVTO) VEN-420 Oceania APO Lyndhurst (VNG) AUS-8100 NSC Llandilo (VNG) AUS-6110 NIST Kekaha (WWVH) HWA-33 TS Lower Hutt (ZLFS) NZL-295 >>> some more links to Time Signal & Standard Frequency Stations: here and here