~ [MODULE] Improve: Registration counter to be more accurate.
# [LOW][MODULE] Fixed: Missing past full periods (no week days) in calendar module.
# [LOW][MODULE] Fixed: Registration status could be wrong depending on timezone.

Changed files in 3.9.10
~ com_icagenda/admin/src/Utilities/Registration/Registration.php
~ com_icagenda/admin/utilities/registration/registration.php
~ [LIBRARY] lib_ic_library/Date/Period.php
~ [LIBRARY] lib_ic_library/lib/date/period.php
~ [MODULE] mod_iccalendar/helper.php