something i noticed about the "schedule" module

[Stan2292]

im new to python. using 3.7 atm. i just finished a SCADA auto fault reporting script (works off of a monitoring website's frontend). i've scheduled the program to run every 30 minutes.

schedule.every(30).minutes.run(abcd_1)

but i noticed that it the timer for 30 minutes only starts after the program has run its course. so if the first instance starts at 9:00, the second one will start at 9:32, then 10:04, 10:36 etc. is there a way to have the script run at every 30 minute mark accurately without resorting to writhing

schedule.every().day.at("9:00").do(abcd_1)

48 times?