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If you are looking for a simple, yet powerful, easy-to-use and accurate timer program for your Windows desktop, you have found it!
Jumbo Timer (successor of the popular, but now discontinued program "Sharp Timer") is designed to meet the requirements of even the most demanding users, in a private, professional and scientific environment.

  • Resizable, unobtrusive LED/LCD-style interface - many configurable color presets included
  • Timers can be set up to count up, count down or work in alarm clock mode
  • Open multiple instances from the first opened instance; save and load your often-used settings

    Feature Summary
    • Unlimited timer instances - integrated "cloning" function
    • Resizable interface window - from tiny to full screen - only your screen size is the limit!
    • Multiple settings can be saved and loaded
    • Each timer can be set up to count up, count down or work in alarm clock mode
    • Timers can be paused and resumed later, even after program shutdown
    • Optional Auto-Resume on program start - launches a timer which has been interrupted
    • Scientific-use accuracy! Jumbo Timer features a display accuracy of 1 second or (optional) 1/10 second, but a calculation accuracy of better than 1/100,000 (10-6) seconds internally (even on interrupted use). Time spans are calculated from the start time and the current time, which guarantees the highest accuracy
    • Counts up to (or down from) 100 hours (over 4 days)
    • Background color (for each timer instance separately) and display (LED style) colors can be changed (many color presets are included)
    • Global hotkeys to operate the program without using the mouse
    • Optional semi-transparency (10..90%) and hidden (system tray) mode
    • Each timer has a short, changeable title, to remind you what it was set for
    • Display days, hours, minutes, seconds and 1/10 seconds (days, seconds and 1/10 seconds optional)
    • 12 hour / 24 hour (military time) display support
    • Optional sound signal on alarm - plays any sound file in wav, mp3 or wma format
    • Launch any program, document or web site on alarm
    • Extremely efficient programming, to guarantee the highest possible accuracy under all operating circumstances and the smallest processor load, even when many timers are operated
    • Run-out timers are handled correctly, when the program is started or the computer is woken up from hibernation, after the timer was supposed to run out
    • Timer can auto-restart (start over) and optionally count the time, while not being active
    • Ready for Windows 7 and 64 bit Windows versions
    • Excellent program stablilty and accuracy.
    • Check out the fully functional Trial Version for 15 days - and if you like it, buy a key! One license is valid for every computer you (only you) are using. Free updates for a lifetime. It's made in Germany

    Count down with controls « Count-down mode, with 1/10 seconds activated
    The button controls in the lower left hand side appear only on mouse-over
    Count down « Count-down mode, with days and 1/10 seconds activated
    The button controls are now hidden
    12 hour mode « Clock mode, with 12 hour mode activated
    The PM indicator is lit (afternoon)
    24 hour mode « Clock mode, with 24 hour mode activated
    The seconds are disabled here (optional)

    The settings dialog. The settings from the "Timer" and "Design" group can be saved and loaded and can be different for each instance.
    Settings dialog

    The animated alarm popup
    Alarm popup
    The context menu
    Context menu


    Praise for Jumbo Timer at CNET / Download.com
    • »The display is very easy to read and can be customized. I use it to time telephone calls I make but it could be used to display a "big" timer on the computer screen for all to see. Can be set for viewing on top of all other windows. Summary: Simple to use and good display.«
    • »Perfect for using to time hours for billing a client. It's always-on top, but small and you can put it out of the way. It *just* displays the time, which means you don't have crap cluttering your screen. Makes it very hard to forget to start or stop the timer. Register a hot key to it and it couldn't be easier to keep accurate records. Before this was using a physical kitchen timer, as everything else was too easy to forget to pause it when you are taking a break. This is even better since it is on the screen...«
    Visit CNET / Download.com to read them

    » Download free Trial Version
    Free Download from Download.com:
    Get it from CNET Download.com!

    [ Alternative Download Link ]

    This program can be run from a restricted account, but installation requires administrator status.
    Works on Windows 7 / Vista / XP / 2003 / 2000 / Me / 98
    Microsoft .Net Framework 2.0 is required.
    » Buy a Key


    Get your key now, to unlock the trial version:
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  • Est.: March, 1999 - Last updated: February 28th, 2010
    © 1999-2010 Johannes Wallroth