GPS re setting camera clock

Pistnbroke

As we know Nikon cameras do not have a Quartz controlled clock so every week I have to re set the clocks on 4 cameas so they will sync for lightroom.
If I plug in a GPS unit does it reset the camera clock to match the GPS and is there a GPS unit that will work with the D7100 and D800? Maybe with two cables or an adaptor.
I just want to plug it into each camera for 20 sec to set the clock ..is that possible?
( dont tell me I can adjust clocks in lightroom I know that I want my cameras in sync)

DenverShooter

Yes the Nikon GPS unit will reset the clock if you set the menu in the camera to let it.

Denver Shooter

Pistnbroke

I found a gps unit for about $45 which comes with two cables so I can re set my D800 D7100 and D3200 with ony one unit ...thanks for the help. Its here

http://www.ebay.co.uk/itm/281236197786?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649#ht_2658wt_1190

Symphotic

I just purchased the Promote GPS. ($99)
Although the spec sheet only shows compatibility up to the D700, it seems to work fine with my D810. Sets the time, does the GPS thing and comes with a handy (but undocumented) camera strap mount that frees up the hotshoe and popup flash.
I'm going to try to geolocate all my travel shots this Winter in Japan. I regret not having a GPS on my trip to Azerbiajan last month.

WestEndFoto

I never take my GPS off. Helps me figure out where I have been, especially in Asian countries.

Symphotic

I never take my GPS off. Helps me figure out where I have been, especially in Asian countries.

I was planning to record every station on the Tokaido from Tokyo to Atami this year. Last year I did the Yamanote line loop in Tokyo. I shouldn't get lost in Japan but I sure got lost in Azerbaijan, and I've been terribly lost in London. I'm just glad I found a gps alternative to the Nikon unit at a much lower price. Made in the USA, too.

WestEndFoto

Before GPS I had every station on the Yamanotesen memorized and many of the subway stations. GPS on my camera means I don't have to do that.