They don't need it. It makes it easier, but if you know it's a date and time format, it's pretty easy to read as long as you take care to keep track at which c

They don't need it. It makes it easier, but if you know it's a date and time format, it's pretty easy to read as long as you take care to keep track at which characters your looking at. Justlikehowinmostcasesepacesmakeiteasiertoreadsomethingbutaren'trequired.