Thread:BEJT/@comment-32551792-20180909102306/@comment-26838855-20180909120803

The absolute longest for "a few weeks" is about 10 weeks, so 70 days. 70 days prior to Monday, August 28, 2017 is June 19, 2017 23:55.

And yes, Zola confirms in The Winter Soldier that she was born in 1984, but the exact dates of birth for Natasha and Clint (which were both just their actors' dates of birth) have been removed because the source was fan-made prop S.H.I.E.L.D. files, with lots of evidence proving them unofficial.