Date.Time Calculator 1.3.9 includes the following improvements and updates: - Fixed button layout issues. - Updated to support and optimize for the latest SDK. - Minimum required iOS version has been changed to 11.0.

Date.Time Calculator 1.3.8 is a version that focuses on the following updates: - Optimized for the latest SDK. - Updated help and reference files. - Updated App Icon.

Date.Time Calculator 1.3.7 contains improvements and fixes for the following issues - UI: Improved the layout of the time zone selection area. - UI: Fix the display font problem of the unit. - UI: Improved layout and color scheme.

Date.Time Calculator 1.3.6 is a version focused on improving the following issue: - UI: Improved compatibility in Dark mode.

Date.Time Calculator 1.3.5 is a version that focuses on the following updates: - Compatibility: Improved compatibility with iOS 13. - Help: Updated help files.

Date.Time Calculator 1.3.4 is a version that focuses on the following updates: -Theme: Add theme switching by screen long press. -Icon: Updated App Icon. -Help: Updated help files.

Date.Time Calculator 1.3.3 is a version that focuses on the following updates: - Added some themes and improved the design. - Changed default theme.

Date.Time Calculator 1.3.2 is a version that focuses on the following updates: - Optimized for the latest SDK. - Added screenshots for 6.5 inch iPhone.

Date.Time Calculator 1.3.1 includes the following bug fix and feature improvement: - Fixed a problem that displayed value shifted by 1 second under rare conditions. - Improved localization.

Date.Time Calculator 1.3 includes the following changes. - Supported time zone switching. - Improved UI layout - Changed the required iOS version to 9.0 or higher

Date.Time Calculator 1.2.2 includes the following change. - Help: Update contents of help.

This release includes the following changes. - iPhone X support - Change required iOS version from 6.0 or higher to 8.0 or higher

This release includes the addition and improvement of the following features. - Added selection function for the color scheme. - Adjusted and optimized part of the UI.

This release contains updates of the provisioning profile, SDK and help files.

This release contains improvement of functionality and visibility of UI components. New Features - Undo: you can cancel the previous operations up to 20 steps. Changes - Many improvements related to calculation behavior have been made. - Scaling process of UI components has been improved. - The color scheme and the positions of UI parts have been tuned. - The Help files have been updated.

This release contains some bug fixes. - Fixed a crash related to units conversion when 'out of range' error is displayed. - Fixed an error of unit conversion on a specific condition. - Fixed errors of help file. - Improved the visibility of the App icons.

This release contains a few bug fixes and a visual improvement. - Fixed HTML errors of help files. - Adjusted the position of the description View.