All shared iCal events show up a month early

All shared iCal events show up a month early

I am trying to share my calendar with Google calendar via iCal feed link and all of my events show up a month early there.  RRULE seems to be set for month before.  That imports it with a previous months day.  See below:

  1. BEGIN:VEVENT
  2. SUMMARY:Igor's birthday
  3. DESCRIPTION:
  4. DTSTART;VALUE=DATE:20180625
  5. DTEND;VALUE=DATE:20180626
  6. LOCATION:
  7. IMPORTANT:0
  8. STATUS:CONFIRMED
  9. COMMENT:
  10. UID:b50738292
  11. TRANSP:TRANSPARENT
  12. PRIORITY:5
  13. CREATED:20170809T005523Z
  14. LAST-MODIFIED:20170809T005523Z
  15. DTSTAMP:20200525T091241Z
  16. ORGANIZER;CN=Seth:MAILTO:myemail
  17. RRULE:FREQ=YEARLY;INTERVAL=1;BYMONTH=5;BYMONTHDAY=25
  18. END:VEVENT
  19. BEGIN:VEVENT
  20. SUMMARY:Nastya's birthday
  21. DESCRIPTION:
  22. DTSTART;VALUE=DATE:20180719
  23. DTEND;VALUE=DATE:20180720
  24. LOCATION:
  25. IMPORTANT:0
  26. STATUS:CONFIRMED
  27. COMMENT:
  28. UID:baa847329
  29. TRANSP:TRANSPARENT
  30. PRIORITY:5
  31. CREATED:20170809T005523Z
  32. LAST-MODIFIED:20170809T005523Z
  33. DTSTAMP:20200526T025621Z
  34. ORGANIZER;CN=Seth:MAILTO:myemail
  35. RRULE:FREQ=YEARLY;INTERVAL=1;BYMONTH=6;BYMONTHDAY=19
  36. END:VEVENT
Is it a glitch or am I missing a setting somewhere.  Events show up correctly in Zoho calendar, though!!!