QB Issue Resolution:

The date is set to show up on invoices and sales receipts by default. You are able to set a different service date by going to Company Settings > Sales > Sales form content.

 

If that doesn’t help out, would you be able to send me a screenshot of your sales receipt?

Resolution for Issue 'how to set default date and time on invoicing/sale receipt when we printing out' available: Yes (Solved).
Source: Intuit Community forum.

how to set default date and time on invoicing/sale receipt when we printing out: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

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