https://calendar.google.com/calendar/ical/llnseminarseries%40gmail.com/private-92446b639cdf8936d959570aca6e04ce/basic.ics
Below are detailed instructions for Outlook and Apple Calendar, but you will be able to follow similar steps on other calendar apps.
Open the Outlook web app (https://outlook.office.com) and log in
Open "Calendar"
In the left-hand menu select "Add calendar"
Choose "Subscribe from web"
Paste the calendar link above
Give the calendar a name and click "Import" or "Add"
A new calendar should appear in the left-hand calendar list. Tick its checkbox to see the seminar events alongside your normal calendar. You only need to do this once. When organisers add new talks to the LLLN calendar, they should appear in your calendar automatically
Click "File" > "New Calendar Subscription..."
Paste the calendar link above
Give the calendar a name and a colour
IMPORTANT: change the auto-refresh frequency from the default of once-per-week, to ensure you don't miss event updates.
The calendar is now added. When organisers add new talks to the LLLN calendar, they should appear in your calendar automatically.