The phrase "stretch the timeline" is correct and usable in written English.
You can use it when referring to extending the length of a period of time, usually in the context of a project or event. For example: "We need to stretch the timeline for this project in order to make sure it's done correctly."
That many vegetable staples are biennials, which don't set seed until Year 2, further stretches the timeline.
"We're concerned the change could add significantly to the department's workload, stretching the timeline for approval of important energy development projects with no clear return in environmental protection," Mr. Milito said.
Stretching the timeline, there was Pelé's surprising return to soccer in 1975 with the New York Cosmos and Muhammad Ali's return to professional boxing in 1970, when his brutal sport was still of substantial interest worldwide.
Federal lawmakers stretched the timelines for elections to allow voters overseas and in the military more time to request ballots, to vote and to mail in their selections.
Mentoring for mid-career researchers and practitioners significantly stretched the timelines of all projects to the extent that all projects required time extensions of between 6 and 24 months beyond their original 4-year grants.
This necessitated stretching the timelines of most projects and, might have contributed to reducing the publication output of senior researchers who had to dedicate considerable time and effort to capacity building.
In the TPP's case, this could help stretch out the timeline into the heat of election season, when Democrats will be even more sensitive to pressure from their base.
Law enforcement officials in Maryland said the link to this shooting also stretches out the timeline for the sniper attacks that left the Washington area feeling under siege.
Basically it stretches out the timeline on all of this, so instead of being able to come to a resolution they're plunged into more litigation".
Stretch the pelt onto the stretching board.
