@janice50 Most of the challenges tell you somewhere in the description (usually at the end) when they start and when they end. You have to pay a little attention there because sometimes the date and time is in a different time zone than your own- one of the fun aspects of 365 being global! Also- most challenges have a specific tag to attach to the picture and that will be included with the start and finish info.
now you've stumped me ... what is ROFL !!
I would have simply said that they are spelt differently.