The WordPress Scheduled Actions (CRON) section of the Tools page lists all scheduled WordPress tasks (CRON jobs) and gives you the option to manually run a CRON job.
Note: Use caution when manually running or deleting scheduled CRON jobs as plugins, themes or WordPress itself may expect these to remain in place. WordPress will recreate any mandatory internal CRON jobs automatically if they are removed.
Additional CRON Control
Additional CRON control is available via the free plugin WP-Cron Control by Automattic.