With the coronavirus situation at this time, the Arduino Day 2020 page (https://day.arduino.cc) states that scheduled events should feel free to reschedule for later in the year. I propose that Saturday, June 20, 2020 be set as Arduino Day 2020.5 or something. This date also just happens to be the Summer Solstice for 2020. If we have a new target date, we won't have all 400+ events spread out over the year but can try to stage as many for the same date as before. Hopefully an additional three months will allow the current crisis to tone down a lot. I have already begun the process of rescheduling our Woodbridge VA USA event for that date.
Thomas W Rackers