May 20, 2020. Difficulty fell by -6.00% to 15.14T from 16.10T.
Change
-6.00%
New difficulty
15.14T
Period length
14.9 days
Network hashrate then (7-day)
94.9 EH/s
Bitcoin price then
$9,479
Hashprice then
$100/PH/day
The 2,016 blocks before it took 14.9 days, longer than the 14 intended, so hashrate had fallen, and difficulty fell by 6.00%: a large adjustment. For every machine on the network that is a pay rise of the same size until the next retarget.