The website builder's text editor can display automatically updating date and time using datetime format string.
Here is how to add automatically updating date/time to your website:
Select or add text element;
Press "Edit Text" button;
Add following value: {{date:placeholder}} (be sure to replace placeholder with desired PHP format character);
Here are a few examples of datetime format string:
If you wish website visitors to see message "Today's date: (current date here)", then your datetime format string would look like this: {{date:Y m d}}
If you wish to display current time, you should enter into text editor: {{date:H:i}}
Press "Done" to save and apply changes.
A full list of paramaters supported by datetime format string can be found in official PHP article.