CORRECTION!
I’m sure you caught it. I wrote “There was no new moon sighted on the eve of May 23rd, the 29th day, so by default, the new moon began the month of Sivan the night of May 23rd. So, today is Sivan 1. Happy new month! Sivan is the month of Shavu’ot, and so it is – May 31st 2020.”
CORRECTION: There was no new moon sighted the eve of May 23rd – the 29th day – so by default, the new moon began the month of Sivan the night of May 24th – last night. So today, May 25th, is Sivan 1.
May your day to be a good one!
Shalom, Yedidah