I've found this to get proper timestamp.
Before that, i've found this link with static timestamp :
https://maps.googleapis.com/maps/api/timezone/json?location=44.5406%2C-87.5011×tamp=1374868635&sensor=false
When i make request to google api, i'm changing only lat/lon. I want to say that this timestamp :
timestamp=1374868635
not looks like first timestamp. Does not look like DateTime.
I want to ask what is the best solution to get timestamp to make calls to google api (see the first link i mention).
Thank you in advance.