Can anyone tell me what happened at this exact time that almost ALL coins went own for a moment ?

It's 7 am by my country time , I guess 5am UTC. Look t the charts for ANY coin you want

$MAGMA
$ZEC
$TUT
I choose totaly random coins ,first ones I saw , and there are many many more , including Bitcoin, Etherium , Giggle , Sol.... They ll had this sudden fall at the same time .

Why ? What happened at 7 am ? 😅