Making an appointment :

10am—zǎoshang shídiǎn.

See you 10am tomorrow—míngtiān zǎoshang shídiǎn jiàn.

Next Tuesday—xià ge xīngqīèr .

See you next Tuesday—xià ge xīngqīèr jiàn .

October 20^th—shí yuè èr shí hào.

See you on 20^th, October—shí yuè èr shí hào jiàn.