Panasonic FZ-G1 Series Operating Instructions - Reference Manual page 16

To conserve power, the following power saving methods are set at the time of purchase.
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The screen automatically turns off after :
10 minutes (when AC adaptor is connected) of inactivity
5 minutes (when operating on battery power) of inactivity
The computer automatically enters sleep
20 minutes (when AC adaptor is connected) of inactivity
15 minutes (when operating on battery power) of inactivity
*1 : Refer to "Sleep/Hibernation Functions"
*1
after :
about resuming from sleep.
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