It was his time to go.

A 31-year old Bronx man fell to his death this afternoon while defecating between subway cars on a moving number 6 train, cops said.

The man fell onto the tracks and was run over by the northbound train as it was leaving 125th Street station shortly after 4 pm, police said.

It gets weirder.

Around the same time on the opposite platform, a bloody and extremely battered man crawled up from the tracks — just as the northbound 5 train was pulling in — with a broken pelvis, severe buttocks injuries and cuts.

That man — who sources said was Manuce Dulcio, 50 — might have been hit by the train, cops said.

It’s unclear why he was on the tracks.

Dulcio was “very intoxicated,” a police source said.

Officials had initially said that the men had been involved in a fight. But they now believe the bizarre incidents were totally unrelated.

Riders were stuck on the 5 train for 45 minutes after the incident.

“They told us the brakes weren’t working, but we all knew it was something else,” said Angel Torres, 17.

His mother Evelyn Boneta, 38, said she had a hunch someone was killed.

“When the train stopped I told my son someone fell. .. It’s not a good feeling being on a scene where someone died,” she said.

The latest underground fatality comes just days after the Transport Workers Union Local 100 — which reps over 34,000 transit workers — issued a flier telling subway operators to slow down when entering stations.

The union said slower speeds could save lives by giving operators more time to hit the brakes.

The MTA accused the union of ordering a slowdown to flex its muscle.

The TWU — which conducted an illegal strike in 2005 that crippled the city — has been operating without a contract for a year.

The state’s Taylor Law prohibits the TWU from going on strike or in any way interrupting subway service as a bargaining tool.

jennifer.fermino@nypost.com