Get orders collection between a date range in magento 2.

We just need to pass start date and end date to get collection between Specific time in Magento 2. We need to filter created_at field using addAttributeToFilter(). Create Block file.
By default created_at field in  sales_order table represent the time of order creation in Magento 2.

Call Function from template file,

You can get Order collection by date range by the above tricks.