I am new to this forum and really joined in the hope that I could get some advice on building a simple and compact battery operated event recorder circuit. What I want to be able to do is build a circuit that records the actual time a wire is disconnected (in real time, not via a timer). It only has to record this event once as it will be reset on a daily basis and the recording could be as simple as just showing the time the event happened in a digital display, in fact that would be preferable. I want to be able to use this to record the time of capture of animals in traps for conservation work. If anyone has any suggestions as to how this circuit might be done, or could point me in the right direction that would be greatly appreciated.