TOP > main > Various Settings of the Product > The [SETTINGS] Menu > [Interface] Menu > [Network] > [Services] > [Online Services] (SOS users only) > [Periodic Notification] (SOS users only) > [Time 3] (SOS users only)
Appears only if you have enabled the NTP function or installed the optional RTC kit, and if you have set [Daily] in the [Type] menu and have set three times in [Notifications].