=TIMEVALUE("14:15:30")
returns a #VALUE! error "TIMEVALUE parameter '14:15:30' cannot be parsed to date/time". I searched the web for a bit, and according to some people the time string may use wrong delimiters. But I get the same error if I change all : to .. Not even Google's support page explain this behavior, and all their examples throw the same error. My spreadsheet locale is Finland, but changing it to United States didn't help.
Edit: Apparently with Finnish locale the formula expects time string to be prefixed with klo. Adding that and using . as delimiters got the formula working.
