GPSTime

GPS and UTC Time converter

Free

GPSTime converts GPS and UTC across formats like GPS Week, TOW, MJD, DOY, and Gregorian dates—built for researchers, students, and GNSS professionals. GPSTime is a time conversion tool designed for researchers, students, and GPS/GNSS professionals. Time conversion is a frequent challenge in GNSS work—whether parsing broadcast ephemerides, handling IGS product names, or aligning observation data. GPSTime streamlines this process by providing accurate conversions between GPS Time and UTC, with full support for leap seconds. The app supports a wide range of commonly used formats, including: • GPS Week + Time of Week (TOW) • GPS Week + Day of Week (DOW) • Gregorian calendar (YYYY-MM-DD HH:MM:SS) • Year + Day of Year (DOY) • Modified Julian Date (MJD) Using historical leap-second data, GPSTime ensures correct handling of the GPS–UTC offset for both past and present times. GPSTime is also capable of saving your conversion history (up to 200 logs in the History tab) and lets you configure default conversion scenarios to match your most frequently used time system and format. With a clean interface and multiple input/output options, GPSTime is an essential companion for GNSS research, education, and precise timekeeping tasks.

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[New updates] - Enabled Liquid Glass tab buttons for iOS 26 (or later) users - Enabled Pull-to-Refresh in Convert tab - Enabled conversion from Blank Fields (e.g. when user press the 'x' button on the input fields) - Automatically scroll-down to the result after user press "Convert" button

Version 1.0.1

The developer, Gimin Kim, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    • Provider
      • Gimin Kim
    • Size
      • 26.3 MB
    • Category
      • Utilities
    • Compatibility
      Requires iOS 18.5 or later.
      • iPhone
        Requires iOS 18.5 or later.
      • iPad
        Requires iPadOS 18.5 or later.
      • Mac
        Requires macOS 15.5 or later.
      • Apple Vision
        Requires visionOS 2.5 or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © 2025 GiminKim. All rights reserved.
  • Privacy Policy

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