If the servosize is bigger than 4 gram (9gram, 12gram 20 gram etc.) The servo needs its own powersupply. An Arduino can not deliver enough current for a bigger servo under load.
If you can afford to buy a Wemos D1 Mini (ESP8266) or a nodeMCU-board (ESP8266).
These little boards can be programmed with the arduino-IDE just the same way as an arduino-Uno with after installing some additional files.
This means these boards can do the job of the complete arduino.
These boards have WLAN onboard and you can connect them to your home-WLAN.
This gives you always actual time.
If you can afford a little more money an ESP32-board
the ESP32 has WLAN and bluetooth.
best regards Stefan