What Unicode characters represent "time"?

Question

What Unicode character symbol(s) express duration (such as a clock, hourglass, or other timepiece)?

For example "★3⅔" instead of "3 hours and forty minutes", where ★ is a time symbol.

Answer 1

The following code points exist related to clocks, watches, and other devices to indicate time:

⌚  U+0231A  WATCH ⌛  U+0231B  HOURGLASS ⏰  U+023F0  ALARM CLOCK ⏱  U+023F1  STOPWATCH ⏲  U+023F2  TIMER CLOCK ⏳  U+023F3  HOURGLASS WITH FLOWING SAND ⧖  U+029D6  WHITE HOURGLASS ⧗  U+029D7  BLACK HOURGLASS 📅  U+1F4C5  CALENDAR 📆  U+1F4C6  TEAR-OFF CALENDAR 🕐  U+1F550  CLOCK FACE ONE OCLOCK 🕜  U+1F55C  CLOCK FACE ONE-THIRTY 🕑  U+1F551  CLOCK FACE TWO OCLOCK 🕝  U+1F55D  CLOCK FACE TWO-THIRTY 🕒  U+1F552  CLOCK FACE THREE OCLOCK 🕞  U+1F55E  CLOCK FACE THREE-THIRTY 🕓  U+1F553  CLOCK FACE FOUR OCLOCK 🕟  U+1F55F  CLOCK FACE FOUR-THIRTY 🕔  U+1F554  CLOCK FACE FIVE OCLOCK 🕠  U+1F560  CLOCK FACE FIVE-THIRTY 🕕  U+1F555  CLOCK FACE SIX OCLOCK 🕡  U+1F561  CLOCK FACE SIX-THIRTY 🕖  U+1F556  CLOCK FACE SEVEN OCLOCK 🕢  U+1F562  CLOCK FACE SEVEN-THIRTY 🕗  U+1F557  CLOCK FACE EIGHT OCLOCK 🕣  U+1F563  CLOCK FACE EIGHT-THIRTY 🕘  U+1F558  CLOCK FACE NINE OCLOCK 🕤  U+1F564  CLOCK FACE NINE-THIRTY 🕙  U+1F559  CLOCK FACE TEN OCLOCK 🕥  U+1F565  CLOCK FACE TEN-THIRTY 🕚  U+1F55A  CLOCK FACE ELEVEN OCLOCK 🕦  U+1F566  CLOCK FACE ELEVEN-THIRTY 🕛  U+1F55B  CLOCK FACE TWELVE OCLOCK 🕧  U+1F567  CLOCK FACE TWELVE-THIRTY 🕰  U+1F570  MANTELPIECE CLOCK 🗓  U+1F5D3  SPIRAL CALENDAR PAD 

You can copy and paste the characters from this page into most editors.

At unicode-table.com you might find more useful code points.