Y-axis with date times and scaling / would like to have a nice scaling 24h

i have some timeseries with weather forecast values, the first series is the tempearture series and the second series holds the according future date/time.

to check the values i made a grafana charting, i would like to have a nicer scaling for the second y-axies, great would be full hours…

and not 17:46, 12:13 and so on, better would be 18:00, 12:00 or so

Thanks in advance