This article is going to teach you how to print the current date and time in your report. You could simply use the below syntax.
<p>{{ "now" | date: "%Y-%m-%d %H:%M" }}</p>
And the result will be this one.
If you would like to set a specific time zone, then you could follow the example below.
{% assign currentDate = now | date: "%s" | timezone: "+1" | date: "%Y-%m-%d %H:%M" %}