Can Siri add some form of timestamp to a Note? I'd like Siri to add a timestamp -- I'm not too fussy about the exact format -- of the current day and time to the end of one of my notes in the Notes app. She can find the note just fine, but takes me too literally:

"Add the current date and time to my UFO Sightings note"


  Okay, I updated your note:  
  
  UFO Sightings
  Jun 3    11:18
  Jun 5    11:28
  The current date and time


In hopes of getting some guidance, I then tried

"Can you add a timestamp to one of my notes?"

She asked which one, and when I told her, she cheerfully replied


  Okay, I updated your note:  
  
  UFO Sightings
  Jun 3    11:18
  Jun 5    11:28
  The current date and time
  A timestamp


I asked about her capabilities in general, too, and got a list of example commands, but it didn't seem exhaustive at all:



Is there a command I haven't been able to find? I'm willing to use this as an excuse to finally buy TextExpander (or similar) if necessary, though I'd prefer a built-in method.

I'm on an iPhone 5s running iOS 8.3.
No, this is not currently possible using Siri. If on iOS 12 a Shortcut can be made by downloading the Shortcuts app from the App Store.

You can then make this Shortcut:





You can format the date and time as you wish. You can record a phrase for Siri to copy this to the clipboard. After this you’ll need to manually paste it in the note.



Images from https://discussions.apple.com/thread/250089354