Option 1) Read the manual
Option 2) Search the Internet for your exact clock model and the word "manual" or useful advice (Hint - the number you give above is only partial)
Option 3) Search the Internet for your exact clock model and see if any of those pages lead you to a manual or useful advice
Option 4) Decide you are too lazy to do any of the above and post on a help forum without bothering to do anything fo ryourself and feel all aggreived when someone points out that, in less than 30 seconds, they found:
http://www.fixya.com/support/t25377530-set_wake_up_alarm_am_fm_digital_clock
http://www.askmefast.com/ONN_CLOCK_RADIO_MODEL__ONB14AV201_HOW_DO_I_SWITCH_FROM_RADIO_MODE_TO_CLOCK_MODE_TO_CHANGE_TIME-qna9168166.html
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November 2015