I use `uplink share` command but I always fail to set the --not-before parameter.
* Usually I try +2d when I see in the help that +2h is possible --> fail
* When it fails, I try to set explicit date, like 2012-12-23 --> fail
This patch makes it possible to use:
* day duration (like +3d)
* shorter date definition (like `2023-12-12` or `2023-12-12T12:40`)
Change-Id: I2243b36f59c8929eb0473c4bb4fed19220890c71
It seems the tests relied on time.Now(), which might cause some
discrepancies in calculations. Use a fixed time.Now() rather than
recalculating.
As a sidefix, remove "Test" prefix from t.Run. These are unnecessary.
Change-Id: I1de903fcf0fcf46fc8e3acf2463e17239b8e3cc6
