Witching hour in 3 month old?

Lauren • Had my sweet girl 02/22/20 - 5 weeks early due to rare genetic disorder💗 Had my handsome man 09/30/22 - 3 weeks early due to low birth weight💙

Every time I google witching hour it says babies 6-8 weeks. But my son is 3 months and the last few nights anywhere from like 7-midnight he is sooooo fussy. Even being held and rocked.

I thought it was a growth spurt but could it be this?