Home wireless router DI-524 would forget the date and time when it would restart (power off, setting changes).
Time settings are on the router page http://192.168.0.1/tools_time.html and automatic NTP (network time protocol) may be configured with 0.north-america.pool.ntp.org in North America.
Save the setting and restart the device.
Trendnet Wireless Network Camera TV-IP110W can sync to a time server on page http://192.168.0.xxx/admin/setup.cgi?page=datetime
Localized time server pools may be found here.