en_tn_condensed/dan/12/05.md

The angel has finished speaking, and Daniel goes on to tell what he saw next in this vision that began in Daniel 10:4.

"How long will it be to the end of these amazing events?"

AT: "How long will these amazing events happen" or "How long will these amazing events last?"

the man clothed in linen

This refers to the man who has been speaking to Daniel, not to one of the men that were standing beside the river.