What uses the cell phone as a clock depends on the hours of the device being right. Some people even prefer to keep the watch on the phone in a few minutes to always have that feeling that they are late when they are actually on time. It’s an interesting practice but it can become tricky to keep if the cell phone’s clock is unreliable. Nowadays it is possible to set the phone to set the clock with the operator, but this practice does not always work well and is not very reliable on all operators and devices.
If you have an Android phone there is a more guaranteed way to keep the watch on your phone always right. Computers and servers around the world use what is called the Network Time Protocol (NTP), which is an online watch service. Can any computer access and “ask” what time is it here where I am? The NTP responds and the computer succeeds getting synchronized.
For Android, there is a super-configurable application to do the same thing: keep the clock always right. He needs you to have a “rooted” Android and internet connection from time to time for him to upgrade. You can configure the refresh rate and the server with which you want to upgrade. I chose the same one that I put in Windows and that I put in all the computers that I use, even Linux. The NTP server I used was time.windows.com.
The android application to synchronize the clock is ClockSync . It is very complete, free and has dozens of configuration options. You can even set up to keep your watch a few minutes in advance, but with the assurance that it is exactly ahead of a few minutes.
I installed it and I’ve been using it for more than a month. It is very interesting to see all the computer clocks and cell phones exactly synchronized. It seems magical and avoids problems and the need to always be hitting each one!