While some people might blow this off as "he added the "-" for swag", I think this is a much deeper topic. What the **** is negative time? And how does math work with negative time? Becasue 1 minute earlier means 1 minute back. "Earlier" is a negative. And then he adds another negative, so would that make it a double negative and thus a plus? Let's look at "- 1 minute later". Negative 1 minute positive. - and + is -, so that would seem to actually mean "1 minute earlier". But let's take it further. What about "1 minute - earlier"?