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Beside, you can setup your crawl schedule with PowerShell. Please check with MS reference.
This example returns the "Local SharePoint Sites" content source and creates a schedule to run a full crawl every 30 days and an incremental crawl every hour every day.
$ssa = Get-SPEnterpriseSearchServiceApplication
$cs = Get-SPEnterpriseSearchCrawlContentSource -Identity 'Local SharePoint Sites' -SearchApplication $ssa
$cs | Set-SPEnterpriseSearchCrawlContentSource -ScheduleType Full -DailyCrawlSchedule -CrawlScheduleRunEveryInterval 30
$cs | Set-SPEnterpriseSearchCrawlContentSource -ScheduleType Incremental -DailyCrawlSchedule -CrawlScheduleRepeatInterval 60 -CrawlScheduleRepeatDuration 1440