Samsung Galaxy Tab S2 User Manual page 157

Setting Date and Time
Your tablet automatically receives the current date and time from the wireless network. You can set the
date by hand by overriding the default setting.
1. From home, tap Apps
2. Tap Date and time
3. Set available date and time options.
To set the date and time, tap On/Off to turn Automatic data and time off.
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To select a time zone, tap On/Off to turn Automatic time zone off.
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 Your date and time settings are applied and saved.
Apps and Features
> Settings .
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