From Johannes Wallroth:
Unlimited timers in a common flow layout interface or free-floating and resizable. Timers can be configured to run in Stop Watch, Count Down and Alarm Clock mode (daily or on a specific weekday or date). The program features an integrated, sortable and printable timer list with Excel (XLS, XLSX) export capability, showing start time, stop time, elapsed time and percentage of time run. Timers can be paused and resumed later, even after a program or computer shutdown. The timers can be controlled single or in groups over the table (list) context menu. The display shows days, hours, minutes, seconds and (optional) 1/10 seconds. Timers can be undocked from the main window and placed free floating (and resizable) on the desktop. Optional system tray (hidden) mode with alarm popup. Optional sound (WAV, MP3, WMA or MID files) on alarm. Scientific-use accuracy - the program logs the start time and calculates the time difference. Optional auto-resume on startup. Changeable colors and background wallpaper. LED/LCD style or normal font digits. Hotkeys, cloning function, export/import function for timer configurations. Optional E-Mail notifications on events and more
(1) You can add numerous timers and customize each time to each testing individual.
(2) You can make each timer a different color to differentiate between the testers.
(3) Space saving: now instead of having individual hand-held times and papers laying around we have everything contained nicely on the laptop. We set the timers each morning according to our paper/pencil testers and when they come in to test we start the timer.
(4) Free trail version
None that I can think of right now.
You can try the trial version and then if you like it you can buy it.