37Sleep mode — to select whether the display is switched offto save battery power during inactivityColour schemes — to personalise the colours on thedevice displayBacklight time-out — to control the backlight time-out ofyour device displayTones settingsTo set the tone of the device, select Menu > Settings >Tones and from the available options.Date and time settingsSelect Menu > Settings > Date and time and from thefollowing:Clock — to hide or show the clock, set the time, changethe time zone and formatDate — to hide or show the date, set the date, change thedate format and date separatorAuto-update of date & time — to activate or deactivatethe automatic-update of the date and time
