Sample code:
YourScheduledApexClass obj = new YourScheduledApexClass(); String sch1 = '0 0 * * * ?'; System.schedule('Schedule Job1', sch1, obj); String sch2 = '0 10 * * * ?'; System.schedule('Schedule Job2', sch2, obj); String sch3 = '0 20 * * * ?'; System.schedule('Schedule Job3', sch3, obj); String sch4 = '0 30 * * * ?'; System.schedule('Schedule Job4', sch4, obj); String sch5 = '0 40 * * * ?'; System.schedule('Schedule Job5', sch5, obj); String sch6 = '0 50 * * * ?'; System.schedule('Schedule Job6', sch6, obj);