Call United Kingdom from Antigua and Barbuda

When calling internationally, it's important to consider time zone differences to ensure you're calling at a convenient time.

Antigua and Barbuda operates on Atlantic Standard Time (AST, UTC-4) year-round with no daylight saving time changes, making it easier to schedule consistent call times throughout the year. For best results, aim to call during their business hours of 9 AM to 5 PM AST (1 PM to 9 PM UTC), and remember they're typically 4 hours ahead of U.S. Pacific Time or 1 hour ahead of U.S. Eastern Time. When calling the United Kingdom, which operates on GMT (UTC+0) in winter and BST (UTC+1) in summer, aim for late morning to early afternoon your time if you're calling from the Americas, or early evening if calling from Asia to catch UK business hours (9 AM-5 PM). Remember that the UK switches to Daylight Saving Time on different dates than many countries, typically the last Sunday in March and October, so verify the current time difference before important calls.