Leveraging data is one of the most effective ways to determine the best times to send your emails. Most email marketing tools provide detailed analytics that show when your emails are being opened and clicked. By analyzing this data, you can identify patterns and adjust your sending times accordingly. Additionally, conducting A/B tests can help you experiment with different send times to see which ones yield the best results. Over time, these insights will enable you to fine-tune your email marketing efforts for maximum effectiveness.