Time.is

Time.is gives you extremely accurate time for any time zone.

Features:

• Synchronization to atomic clock time with an accuracy down to ±5 milliseconds
• Instant time conversion/meeting planner/world clock with 7 million locations
• Always up-to-date time zone database, automatically adjusted when time zone rules are changed
• 44 languages
• Sunrise time, sunset time and day length
• Beautiful calendar with interval calculation
• Word clock
• Alarm clock
• Dark/light mode
• Several time and date formats (seconds on/off, 12/24 hour mode)
• Intuitive, gesture driven interface
• Elegant, minimalistic design
• Designed to take advantage of large iPad screens
• Looks great in both portrait and landscape format
• Small file size
• Works offline (except synchronization and search)
• No ads

This app synchronizes to the web site Time.is, which is a favorite among clock collectors and time enthusiasts.