In response to http://stackoverflow.com/questions/34568103/ics-calendar-feed-with-quarterly-recurring-events
1 hour
Next dates and times:
| 9:00 am Wednesday, 28 April 2021 |
| 9:00 am Wednesday, 28 July 2021 |
| 9:00 am Thursday, 28 October 2021 |
| 9:00 am Friday, 28 January 2022 |