There are two ways to display post date for blogger posts created on the same day. Both will require to EXPAND WIDGETS TEMPLATE. Thus, back up!
Technique #1. Using Blogger Post's Default Published Timestamp.
1. Go to EDIT HTML Page. EXPAND WIDGETS TEMPLATE.2. Press Ctrl + F. Type in <h2 class='date-header'> on the search bar.
3. Look for a code similar to this.
<b:if cond='data:post.dateHeader'>
<h2 class='date-header'><data:post.dateHeader/></h2>
</b:if>
4. REPLACE the highlighted code above -- from <data:post.dateHeader/> to <data:post.timestamp/>
5. SAVE TEMPLATE.
How to change the Date format.
1. Go to SETTINGS tab.
2. Choose FORMATTING.
3. Under TIMESTAMP FORMAT, choose desired format.
Technique #2. Using script tags.
Anshuldudeja posted a blogger trick that uses this code:
<b:if cond='data:post.dateHeader'>
<script>var ultimaFecha = '<data:post.dateHeader/>';</script>
<h2 class='date-header'><data:post.dateHeader/></h2>
<b:else/>
<h2 class='date-header'>
<script>document.write(ultimaFecha);</script>
</h2>
</b:if>
View complete instructions.
Result.
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