Hello. It is wonderful that you are planning your meals in advance to save time after a long day at the office. Regarding your question about cooked rice, it typically stays safe and fresh in the refrigerator for about 3 to 4 days when stored properly.
To ensure your rice remains safe and delicious, it is very important to cool it down and store it in an airtight container as quickly as possible after cooking. Leaving cooked rice at room temperature for too long can allow spores of a bacterium called Bacillus cereus to multiply and produce toxins that reheating cannot always destroy.
When you are ready to eat your meal, make sure the rice is reheated thoroughly all the way through until it is steaming hot. If you notice any unusual smell, a sticky or slimy texture, or if it has been in the fridge for more than four days, it is always best to discard it for safety. I hope this helps you with your meal prep routine.