Step 1
Open the macOS Calendar application.
My calendar does not refresh often enough.
Each calendar at WebCal.Guru has a recommended update frequency, which is included in the calendar data file processed by the calendar application. For most calendars, it is daily or weekly.
It is up to the calendar application whether it uses the recommended frequency of something else. Regardless of the recommendation, macOS Calendar always uses weekly. Fortunately, you can change it to something else.
Please do not select anything more often than daily. Since the data is cached, you will not get updates any sooner - only more load to the server.
Step 2
If there is no calendar list on the left, select View Show Calendar List.
Step 3
Right-click on the calendar and select Get Info.
Step 4
In the Info dialog, select the interval period under Auto-refresh.
For most calendars, Every week is good. Some calendars, such as Погода, update more frequently. For these calendars Every day is good.
Do NOT select an interval more frequent than Every day. Calendars are not generated more often than that, so updating more frequently will serve no purpose.
Finally, click OK.
Updated 8 Feb 2023