PalmOS application: Times4
In my spare time, I've done a little playing with application
development for PalmOS devices (for example, the Pilot or Handspring
lines). Here's one program that might be sufficiently interesting for
actual use: Times4.
Times4 is a clock program that shows you the times in 4 different
timezones concurrently. Some features:
- Times shown updated in real-time.
- Preprogrammed timezones (e.g. no need to remember the offset for
- Automatically accounts for daylight savings time. Select from 4
DST modes independently for each time. (DST starts and ends on
different dates in different parts of the world.)
- Handy travel feature: If you go to one of the listed timezones,
you can quickly and easily update the system clock to the new
- Automatically (when you run the program) prompts to update the
system clock after begin or end of the local Daylight Savings
Here is a sample screen:
Still, this program could use improvement. If you can think of some
interesting feature that you would like me to add, let me know. (For
example: it only knows about 17 timezones. The missing ones are just
less common...but I should still get around to adding them.) Also,
please let me know of any bugs, though I think it is quite stable at
Legal stuff: This program is free for personal use, and may be
distributed freely. Modified versions (including rebranding) may not
be distributed. This program comes with no warranty, express or
If commercial use or rebranding are desired (unlikely though that
seems), please contact me, Jonathan Springer. (Please note that
contact information in the "About" dialog of the program may be
Download the PRC file from here, and install with your usual device
Usage: This application is fairly straightforward, but there is fairly
verbose documentation in the help screens of the program itself, if
- Version 1.1 (April 2002)
- Added system time adjustment for Daylight Savings Time change.
When run before or after a Daylight Savings Time change, the user
is prompted to accept the suggested adjustment, which Times4 then
- Version 1.0
- Registered the Creator ID with Palm, so it's official now.
- Version 0.2.1
- Date fields were too narrow; long dates could have the ends
truncated. Widened them.
- Version 0.2
- Added 4th time field; there was plenty of room.
- Added "travel" feature. This allows the user to easily set the
Palm device clock to one of the other time zones.
- Added more time zones and one more daylight savings time mode.
- Version 0.1
Updated Feb. 6, 2006