The keycap digit three emoji shows a number 3 on a key of the keyboard. This symbol is usually used to build dates or count down numbers. It will also be used while typing numbers on the keyboard.
Keycap Digit Three Emoji
NOTE: Keycap Digit Three was accepted in 1999 as part of Unicode 3.0 and labeled Emoji 3.0 in 2016.
3️⃣ Keycap Digit Three
:three: (Github, Slack)