Google Checkout extends the authorization period to seven calendar days

[mandy]

Until recently, we've stated that sellers must charge their buyers within 72 hours of a successful authorization to be guaranteed funds. However, some sellers have mentioned that 72 hours often isn't enough time, especially during holidays or long weekends.

In response to this feedback, we've extended the authorization period to seven calendar days for guaranteed funds. Now you can step away from the office without having to worry about charging orders so soon after you receive them.

If you miss this seven-day window, you can still charge your buyer, although you won't be guaranteed funds...

http://googlecheckout.blogspot.com/2007/...d-for.html