What does Timer look like on Samsung?

On Samsung it is the design shipped in One UI 8.5, shown above at full size. Older revisions are listed beneath it.

When did Samsung add Timer?

Samsung first drew Timer in Touchwiz 6.0, released 7 marzo 2016.

Samsung Electronics has shipped 24 versions of Timer. Each is dated, so you can see when the design changed.

Samsung Experience 9.0

Samsung shipped a new design for Timer in Experience 9.0, released 11 febbraio 2018. The previous design is shown beside it.

✳ marks a release that redrew this emoji. The rest re-shipped the design unchanged.

What does Timer look like on Samsung?: On Samsung it is the design shipped in One UI 8.5, shown above at full size. Older revisions are listed beneath it.
When did Samsung add Timer?: Samsung first drew Timer in Touchwiz 6.0, released 7 marzo 2016.
How many times has Samsung redrawn Timer?: Samsung Electronics has shipped 24 versions of Timer. Each is dated, so you can see when the design changed.