John Gill Commentary Acts 4:3

"And they laid hands on them, and put them in ward unto the morrow: for it was now eventide." — Acts 4:3 (ASV)

And they laid hands on them
The Arabic version renders it, "on both"; on Peter and John; seized them by force, and drew them out of the temple:

and put them in hold unto the next day ;
not in the common public prison, as in (Acts 5:18) but they put them into the hands, and under the care and custody of a set of men, to keep and guard them; that they might not go away, until they had an opportunity of bringing them before the sanhedrim, to be examined and punished by them:

for it was now eventide ;
it was at the ninth hour, or about three o'clock in the afternoon, when Peter and John went up to the temple, where they healed the lame man; after which, both of them preached to the people; so that it must now be evening; at least, as the Syriac version renders it, "the evening was near", or was drawing on.