Date & Time Interval

Date & Time Interval

By SACHIN SABU

Date & Time Interval is a free iOS utility for calculating date intervals, age, and time zones, designed for personal and professional time tracking.

The App DNA

What makes this app unique?

The app removes the cognitive friction of manual date arithmetic and decimal-based time conversions, serving users who need quick, ad-hoc results without the complexity of professional scheduling platforms.

For Individuals needing precise date, time, and age calculations for personal planning or professional timesheet tracking.

What does it look like?

Key features

Time Interval Calculatorstandard

Calculates exact duration between two dates including years, months, days, hours, and minutes.

Working Week Calculatoredge

Determines weekdays between two dates with toggle options to include or exclude weekends.

Time Zone Converterstandard

Checks and converts local time across global cities and regions.

How much does it cost?

freeFree access to all features

The app operates as a free utility with no visible subscription or IAP gates.

Velocity

Dormant developmentUX improvementsShow more...

The app has effectively ceased development, with no updates released in nearly four years. The release history shows a long-term decline in activity, transitioning from feature-focused updates in 2020 to a complete halt after the July 2022 release. Given the lack of any activity for well over 12 months, the app is classified as a zombie project.

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Who built it?

SACHIN SABU

3 apps tracked · Productivity

Date & Time Calculator(Finder)Date & Time Calculator(Finder)Timeline daysTimeline days
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User Sentiment

What do users think recently?

Review voice lately leans thrilled. Users appreciate simple and intuitive interface design allows users to perform time and date calculations without friction.

How are ratings & reviews evolving?

App Store
4.65 · 114

What users say, by theme

What Users Love
  • Simple and intuitive interface design allows users to perform time and date calculations without friction
What Frustrates Users
  • Work day calculations fail to account for federal holidays, limiting utility for professional scheduling needs
What Users Want 1 request inside

6 of 6 recent reviews analyzed · limited sample · Thrilled overall

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Unlock 1 user request, each backed by review evidence.

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Competition

Competitive landscape for Date & Time Interval

How's the Productivity market?

The app maintains a 4.65-star rating across 114 total ratings, positioning it as a stable, high-utility choice for casual users. Its lack of monetization gates contrasts with the professional-tier pricing models of its main rivals.

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The rivals identified

Time & Date Calculator

By timeanddate.com

This app is the dominant market leader, leveraging the massive brand authority and specialized domain expertise of the timeanddate.com platform.

  • Leverages a massive, trusted web-based data infrastructure that provides unparalleled accuracy for global time zone conversions.
  • Offers a comprehensive suite of astronomical and calendar-based calculations that go far beyond simple date arithmetic.
  • Maintains a professional, utility-first interface that appeals to enterprise and power users rather than casual consumers.
Date & Time Interval vs Time & Date Calculator

Unlock the head-to-head verdict: where this rival wins, and where it loses.

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The Analyst's Read

Key takeaways for Date & Time Interval

Where is it heading?

The market for date utilities is consolidating around tools that offer professional-grade scheduling, leaving this app exposed due to its stagnant release cadence. The app must bridge the gap between personal utility and professional timesheet management to avoid being displaced by high-velocity competitors.

  • The lack of updates for over 45 months creates a growing risk of platform obsolescence, which erodes the app's competitive standing against active rivals.
  • High user satisfaction with the current interface design provides a stable base for potential monetization experiments if professional-grade features are added.

The SWOT

Core Strengths
  • Minimalist interface design reduces cognitive load for casual users performing basic date math
Critical Frictions 1 weakness inside
Growth Levers
  • Localized holiday calendars could unlock professional scheduling segments currently served by more complex rivals
Market Threats 1 threat identified

Next best moves

1 Pivot · 1 Maintain

Integrate a custom holiday exclusion toggle into the business day calculator because professional users cite this as the primary barrier to adoption → unlock professional scheduling segment.

+ 1 more prioritized move

The counter-intuitive read

The app's lack of updates is its primary retention mechanism: its simplicity-first…

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Feature gaps

Holiday-aware business day scheduling (available in professional-tier rivals but missing here) +1

Since the last report: The app shifted its strategic focus toward professional timesheet management by identifying holiday-aware scheduling as a critical development priority. This pivot is supported by the addition of a time zone converter and a more targeted approach to professional user conversion.

Bottom line

Integrating holiday-aware scheduling would address the primary frustration driving professional churn, allowing the app to compete for timesheet-focused users. Without this, the app remains a niche personal tool vulnerable to more feature-rich, high-velocity rivals.

Unlock 1 critical friction, 1 market threat, 1 more prioritized move and the analyst’s take.

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FAQ

Is Date & Time Interval suitable for professional timesheet tracking?
While the app handles basic date arithmetic well, it currently lacks holiday-aware business day calculations, which limits its effectiveness for professional payroll or complex scheduling needs.
How does Date & Time Interval compare to Time & Date Calculator?
Date & Time Interval focuses on a simplified, minimalist interface for casual users, whereas Time & Date Calculator offers a more comprehensive suite of astronomical and global data for power users.
Does Date & Time Interval contain intrusive ads or paid subscriptions?
The app is currently free to use with no visible subscription or in-app purchase gates, offering full access to its feature set.
What is a good alternative for professional time-tracking?
Users needing payroll-oriented math, such as overtime and hourly wage calculations, should consider specialized tools like Work Hours Calculator.

Sources

  1. [1] App Store, source

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Date & Time Interval, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

What's new

The app shifted its strategic focus toward professional timesheet management by identifying holiday-aware scheduling as a critical development priority. This pivot is supported by the addition of a time zone converter and a more targeted approach to professional user conversion.

added

Time Zone Converter

shifted

Professional Targeting

shifted

Holiday Support Focus

Cite this report

Marlvel.ai. “Date & Time Interval Intelligence Report.” Updated Aug 2, 2026. https://marlvel.ai/apps/date-time-interval

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