HTC T-Mobile G1 User Manual page 64

Synchronising Information
Note
3. Adjust the following sync option and applications according to your
preference:

Tip
64
By default, the personal information in Google Mail, Calendar, and
Contacts will sync whenever you make a change or receive a new
message.
Date and
time of last
synchronisation
Auto-sync. When enabled (checked), Auto-sync will sync Google Mail,
Calendar, and Contacts automatically, as you make changes or receive
new messages. When disabled, information will not be synchronised
automatically.
When Auto-sync is disabled, you can force synchronise individual
applications, such as Google Mail or Calendar, by selecting their
respective check boxes, or by pressing the MENU button and tapping
Sync now.
Problem with data
synchronisation. Check
your data connection
and try again.
Tap to include or
exclude the application
from Auto-sync.
The arrows move
clockwise when
synchronising data.