zTimer

zTimer is a portable and tiny (59 KB) program which really helps to control run time of tasks and doing them more quickly. It shows countdown timer on a small always-on-top window. It has two additional seconds counters (total time and total time without time for pauses). After end of time the timer became count-up and blinks red.
Features:
helps to control run time of tasks;
portable and tiny;
two additional seconds counters;
after end of time the timer became count-up and blinks red;
automatic pause on computer lock (optionally);
controllable window transparency;
last window position is stored in registry.
Controls:
click on a window with a mouse right button to show context menu;
double click on window to toggle pause;
use '+' and '-' buttons to increase or decrease time (minutes by default);
click on small gray line under the digits (it becomes green) to change hours or seconds;
use 'L' button to toggle "automatic pause on computer lock" mode;
window transparency can be set by mouse wheel.