I use a Time-O-Lite for enlarging, a Gralab for developing, and when I need to watch something and still time it (say dodging & burning a print) I use this in conjunction with a radio reciever - http://www.nist.gov/pml/div688/grp40/wwv.cfm Somtimes during the day propogation is wierd and I use this, again with the reciever.
http://www.nrc-cnrc.gc.ca/eng/servic...hort_wave.html . One or the other, often both, are recievable for me 24/7.