It's Not Eid al-Fitr for Everyone

There are a handful of mosques in Tokmok (and elsewhere in Kyrgyzstan, for all I know) that are not celebrating Eid today.  They'll wait till tomorrow after the moon is sighted.  I honestly don't know how this affects people's celebrations.  Do you visit friends and family who attend a mosque who hasn't finished Ramadan yet?  It's not very many mosques in town that are waiting, but I wish I knew if it made much of a difference.