For how long is the flag flown at half mast after the death of a president?

The correct duration for flying the flag at half-mast after the death of a president is 30 days. This practice is a sign of national mourning and is intended to honor the memory of the president. The 30-day period is a formal custom that reflects the significance of the office and the impact the president has had on the nation. It serves as a reminder of the loss to the country as the nation comes to terms with the passing of a leader.

While other timeframes may be applicable for different officials or circumstances, the 30-day period for a president is a well-established protocol that underscores the gravity of the occasion and the respect afforded to someone who has held the highest office in the land.