• 01.025 Just before tea-time
• 01.098 here this Wednesday tea-time.’
• 02.029 It was after tea-time;
• 03.010 Tea-time had long gone by,

Remember, afternoon tea is a treat enjoyed by folks at leisure on comfortable sofas in midafternoon.  High tea is a working family’s meal sitting up high at the table in proper chairs, served right after getting home from work when one is famished, and including as much serious nutrition as possible!

This word is hyphenated just so in its OED sub-entry

“tea, n.” OED Online, Oxford University Press, June 2017, http://www.oed.com/view/Entry/198340. Accessed 21 September 2017.