Original: These days are the same as the flag days of the United Kingdom with the exception of 3 September (Merchant Navy Day), which is a specific flag day in Scotland during which the Red Ensign may be flown on land in place of the Saltire or Union Flag.
Simplified: These days are the same as the flag days of the United Kingdom with the exception of 3 September (Merchant Navy Day), which is a specific flag day in Scotland and during which the Red Ensign may also be used.