I mean, he did, at some point give out the general estimate: ‘months’, which seems reasonable ballpark’ish, and then the manager got upset anyway (presumably because it wasn’t an answer he wanted to hear).
The request was "I need the time anyway. Provide it in a spreadsheet by end of day."
And in following dialog manager shows surprise, but then ends up with "just put something in". To which op responds "I cannot stand for an estimate of something I don't know. Can't you then just put something in".
And in following dialog manager shows surprise, but then ends up with "just put something in". To which op responds "I cannot stand for an estimate of something I don't know. Can't you then just put something in".