Mikvah night
After completion of Shivah Nekiyim, Leil Tevilah can be calculated according to the relevant Halachic times, location and selected settings
Calculated Leil Tevilah follows day seven of Shivah Nekiyim, at nightfall under the selected method A report on day 10 gives clean days 11–17 and eligibility after day 17, as day 18 begins
Eligibility is not a Tevilah report The process keeps waiting until a valid completion is recorded An early report does not complete it; deleting the report restores waiting