warosu very... png
(13.5 KB, 386x118)

4chan-time... txt
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 >>/35051/
Thanks. 4chan time falls 5 hours behind UTC in first days of November. TZ=US/Eastern also works. Here's a an updated short function.
fourchan_time(){
for FILE_PATH in "$@";do
	FILENAME=$(basename "$FILE_PATH")
	CHAN4_TS="${FILENAME%%.*}"
	CHAN4_TS="${CHAN4_TS%%s*}" # handles thumbnail names
	UNIX_TS="$(("$CHAN4_TS"/1000))"
	POST_TIME="$(TZ=America/New_York date --date @"$UNIX_TS" +'%Y-%m-%dT%H:%M:%S')"
	echo "File: $FILENAME"
	echo "https://desuarchive.org/_/search/filter/text/start/"$POST_TIME"/end/"$POST_TIME"/order/asc"
done;}
I added more archive addresses in the script.