Graphic with daily end time of an activity with influxdb

Hello guys,

I already monitor plenty fo things on grafana with influxdb. However I have new kind of reporting I should do: I have to do a graphic of with the daily end time of a daily process. Based on your experience, what is the best approach ? I tried to load a time value (“myprocess endtime=08:32:07,exec=55 1597386672000”) in influxdb and show it on a graphic but it failed.