Galaxy Watch 5 Icon on homescreen looks like a minus sign

[Roboken640]

My Watch 5 has an icon at the top of the home screen. It looks like a line or minus sign.  What does it mean?  I can't find it anywhere. 

[Fatenyl · Accepted solution]

Do not disturb mode

[Thats_What_She_said]

Couldn't say it any better 👍