if you would kindly describe the the two points , I would be grateful. Although it is not question of mine ,I need to know rulings concerning it.1)I need to know if part-time jobs income is halal or not. As I am working full-time for a firm, and after office hours I do some web development jobs for income. Is it permissible to work for other clients, not related to my company?2) Also, I need to know if it is permissible for me to work on my part-time or personal tasking during my office working hours, from my office. As sometimes I need to do some urgent changes and update; but it does not interfere in the office work. So, please, guide me from the Islamic point of view

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.

During office Hours, it is not permissible for you to work for your own benefit without the permission of your employer.

The employee is like a privately hired person, and the benefit of his time is owned by his employer during working hours.

Kashshaaf Al-Qinaa’ reads: "The private worker is the one whose benefit is measured by a specific amount of time, and his time is exclusively for the employer during the period of the contract; no one else can benefit from his services (i.e., time) during this period of time." [End of quote]

As for the time outside your working hours, then there is no harm for you to work.

Allah knows best.