An amazing Single-Window Timer program, able to run Multiple Instances
EditBy: 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 Sharp Timer) is designed to meet the requirements of even the most demanding users, in a private, professional and even scientific environment.

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 of 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... you can free download Jumbo Timer 1.01 now.