I have column "start of the period" with dates like
2014-01-01
2014-01-07
2014-02-01
2024-02-12
and so on; I want cell with start of the current period to be highlighted, so I tried custom formatting formula
=AND(TODAY() >= R[0]C[0]; TODAY() < R[1]C[0])
and it doesn't work. Is it even possible in new sheets without custom onEdit() script?