Hourglass With Flowing Sand emoji is a picture of an old-fashioned device which was once used for measuring time. It is quite rarely used nowadays for its original purpose (unlike the device represented by ⌚ Watch emoji) — but it is still a recognized symbol of a flow of time. It may indicate symbolically that there is a little time left or that someone is limited in time.
Examples of using
“Everything changes with time ⏳”
“I have only an hour left ⏳”
How to type