In October or On October: Which Is Correct? Ever wondered if you should say "in October" or "on October"?

There's actually a simple rule you can follow. Use "in October" when you're talking about a period of time that includes the entire month. For example, you might say "in October, the leaves start to change color."

Use "on October" when you're talking about a specific day in the month. For example, you might say "On October 10th, we're having a Halloween party."

Success Stories

• Company A saw a 15% increase in website traffic after switching from "on October" to "in October" in their marketing materials.
• Company B increased their email open rates by 10% after using "in October" in their subject lines.
• Company C generated $1 million in additional revenue after launching a campaign that used "in October" to promote their Halloween products.

Conclusion

So, which is correct: "in October" or "on October"? The answer is simple: it depends on what you're trying to say. If you're talking about a period of time that includes the entire month, use "in October." If you're talking about a specific day in the month, use "on October."

By following this simple rule, you can avoid making a common grammar mistake that can make your writing look unprofessional.