numbered
v.v. to give a number to each thing in a group or list. It can also mean that something is coming to an end soon because its time is limited.
v. to assign a sequential number to items in a series; also used figuratively to indicate that a person or thing has a limited remaining lifespan or duration.
She numbered the pages of her notebook from one to fifty.
The clerk numbered each file in the cabinet to make them easier to find later.
As the revolutionary forces approached the capital, the dictator realized that his days in power were numbered and began planning his escape.
When used to mean 'limited in time,' it is almost always used in the passive voice with 'days' as the subject.
His days are numbering.His days are numbered.In the sense of time running out, the word must be used as a past participle acting as an adjective.