I want to be able to enter hours for each job on my phone when I’m onsite

Hello monkenmole-gmail, 

Welcome to the Community. It's important you're able to enter hours for each of your jobs and I'll be glad to assist you with that. QuickBooks offers a versatile accounting platform that allows you to save time for the things you love. 

When it comes to entering and tracking hours for each job, QuickBooks offers a powerful time tracking feature. The good thing about this feature is that it allows you to enter/track hours using the mobile app. I encourage you to learn more about this feature by clicking on this link here. 

You're more than welcome to ask other questions. I'll be one message away in case you need anything else.