I have created 2 input boxes one for start_time and the other end_time, both create a new variable with the timestamps in format 'YYYY-MM-DD hh:mm:ss' . In my chart i want to use these dates to see that the sessionstarttime is in between these timesamps.
In my chart I use set analysis
count({$<sessionstart={$(>=$(start_time))}>}1)
but it seems not working. My be the varaible is not formatted as a timstamp?