PhoneTime is a free Java MIDlet for mobiles that helps you know when it is ok to call your relatives and friends living all around the world in different timezones, and when better not to call because it is night there.
Because of very modest requirements (it only requires MIDP 1.0/CLDC 1.0) it should run on practically any Java-enabled mobile phone that has about 20 kB free memory to store the MIDlet.
Basically PhoneTime is one of the many “world clock” programs for Java-enabled phones, albeit one of the more flexible ones: It can show as many clocks simultaneously as the screen size of your phone allows and it remembers their labels and timezones.
A speciality however is the following: In the options you can configure what are acceptable hours to call. If a local time is outside these hours the label in the clock display turns from green to red to warn you.
To keep the MIDlet simple it nows nothing about real timezones or even daylight savings time acrobatics. You must tell it how many hours the local time of the clock that you want to display differs from the hour of the internal clock of your phone, e.g. “3 hours ahead” or “6 hours behind”. People who want to deal with those “strange” half-hour timezones are out of luck so far.
PhoneTime for mobile phones