CodePudding user response:
A little bit simpler option:
=ArrayFormula(AVERAGE(TIMEVALUE("0:"&B2:B8)))
format result cell as:
CodePudding user response:
try:
=INDEX(TEXT(AVERAGE(VALUE(SUBSTITUTE(
FILTER(B2:B, B2:B<>""), ".", ":"))), "[h]:m.s"))
CodePudding user response:
more accurate solution:
=INDEX(TEXT(AVERAGE(QUERY(QUERY(SPLIT(
FILTER(B2:B, B2:B<>""), ":")/24/60/{1,60},
"select Col1 Col2"), "offset 1", 0)), "m:s.0"))