Conditional Logic with Date and Time in Qualtrics

1. To begin, go to Survey Flow and click Add a New Element Here, selecting Embedded Data. Give it a name (e.g. date), then click Set a Value Now. 
2. Expand the value choices and select Insert Piped Text > Date/Time > Current Date/Time.  
3. You will now have the option of choosing from a list of formats. Just for example, I'll select 11/29/2018 (a.k.a. mm/dd/yyyy). Your Embedded Data element should now look something like this:
   
4. Now you can refer to that Embedded Data in a logic statement. In this case we'll add another element, this time choosing Branch, then clicking Add a Condition as prompted. The logic we want here is to branch if our Embedded Data named date equals 11/29/2018, i.e. only show a Block on November 29th, 2018.  
5. Move the block we want to display on that date so that it's indented under the branch. The Survey Flow should now look like this:
6. That's it. Using Survey Flow, Embedded Data, Piped Text, and Branching, you now have a block that will display only on the date you define.

1. Again, set Embedded Data, but this time choose the format that looks like Thursday, November 29. 
2. Now add a Branch, but use Contains logic rather than Equals. We will also click the green + button to add a second condition. Join the two by Or, like you see here:
3. Since we want to prevent responses on those two days, click the indented Add a New Element Here under your Branch and select End of Survey. Here's how the Survey Flow should look:

1. Click on Options in the Embedded Data element box 
2. Select Date as the type.
   

Here's an example of a Survey Flow that will display the Block labeled Date Contingent only up to (and including) November 29th, 2018.

1. First, define your Embedded Data field where you'll store time and select a 24-hour format, e.g 18:37. Times with AM/PM might work too, but I haven't tested that (see that I gave it the type Date since there's no Time type—it seems to work).
2. Leave Survey Flow and in the Survey, create three Descriptive Text questions with the greetings. 
3. Add Display Logic to each by clicking the gear icon and selecting Add Display Logic. Logic here is defined just like it is in Survey Flow.  
   
4. Here's what yours may look like after adding logic to all three: