JS code to check time and have a popup notification

Job ID: 31832929

Budget: $30 – $250 SGD

Looking for someone to assist on a JS code to check time and have a popup notification if the specific time has reached. Example (Monday: 2.00 pm, if they are on the website then they have a popup to let them click to go to another URL)
Related categories: PHP JavaScript CSS HTML jQuery / Prototype