Estimated time to create a microlearning module

Hello everyone, 

I'm exploring the creation of a series of microlearning modules for a new project my organization is applying for. I'm trying to figure out the amount of time to budget for the creation of a microlearning event. While I see a lot of great resources here and in other places about creating microlearning content, I haven't been able to find information about that aspect of planning projects. I thought about using the elearning development calculator, but I'm not sure it's comparable, particularly given how easy it is to create microlearning events in Articulate Rise. 

I know that there are a lot of variables to consider, but I'm wondering if anyone has a time frame that they reference when project planning, etc. and/or has resources they can point me to around this? 

Many thanks in advance for any information you can provide!

Corey