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| *Travel Tips>>>San Francisco Travel Tips |
I made a trip from San Francisco to Denver. My cell phone made the time adjustment automatically. How? |
Travel Info I made a trip from San Francisco to Denver. My cell phone made the time adjustment automatically. How? Travel Tips Simple answer is your cell phone is roaming. It's constantly trying to stay connected to base stations - and as you leave one "cell" you move to another. When your cell phone handshakes the new cell - it gets back info like local time. HTH. Others radio transmitions The time is controlled by satellite It switched to a different provider, and captured the data from this provider. Cell towers broadcast the time so phones can sync with them. The same way your computer makes adjustments to daylight savings time and standard time-- or if your computer freezes up then gets restored. The atomic clock in Boulder, CO does this for us. The cell phone transmits signals to a tower nearby and the tower send information back and it gave your phone the information on what time zone its in and where it is located and your phone automatically adjusted just like what it does for Daylight Savings. So basically it's like a little GPS device that can tell its in a different time zone |
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