Canon PowerShot D20 User Manual page 52

Using GPS Function
Automatically Updating the Date and Time
You can have the date and time for the configured time zone (pp. 19, 160)
automatically updated when the camera receives GPS signals.
Your shots will be tagged with the shooting date/time as updated (p. 48, in
UTC format), along with location information (p. 126).
Confirming Automatic Time Updating
[Update completed] is shown on the [Date/Time] screen in step 2 on p. 20
after the date and time are automatically updated. [GPS Auto Time: On] is
shown if a GPS signal has not been received yet.
• When [GPS Auto Time] is set to [On], you cannot change the date
and time by accessing the [Date/Time] screen as described on p. 21,
because this information will be updated automatically.
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Set [GPS] to [On].
Follow steps 1 – 2 on p. 47 to configure the
setting.
Configure the setting.
Press the n button, choose [GPS Auto
Time] on the 3 tab, and then choose [On]
(p. 42).
To set daylight saving time, follow the steps
on p. 20.