The average time for standard shipping is between 3 to 5 days depending on the shipping company and whether you ordered something on a business day or over the weekend.
If you ordered something that was shipped out Friday then it can take an additional 2 days for you to get the package because packages move slower on weekends than on weekdays.
The sorting facilities are still open on weekends and are moving your packages and mail through the system but it slows down a bit.
But most shipping times are 3 to 4 days at most.
On business days when I order something online and it ships out the same day it takes me around 3 days to get the package once the package has been shipped out.
Waiting on a package or something you ordered online can be really hard but it will eventually come.