Canon 115 HS, 117 HS Set the world time zone., Choose the world time zone.

Changing Camera Settings
172
Set the world time zone.
Press the op buttons to choose [
World], then press the m button.
Press the qr buttons to choose the world
time zone.
You can also set the daylight saving time
as in Step 1.
Press the m button.
Choose the world time zone.
Press the op buttons to choose [
World], then press the n button.
 will appear on the shooting screen
(p.186).
If you change the date or time in the setting (p.19), your [ Home]
time and date will automatically change.