Free Date and Time Tools for Everyday Use

Compare time zones, calculate dates, count days between events, and plan work, school, business, and personal schedules with simple, fast, mobile-friendly tools.

Explore Our Most Popular Tool: Time Zone Converter

DateTimeToolkit at a Glance

A growing library of free calculators for dates, times, deadlines, payroll, school schedules, projects, and everyday planning.

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65+ Free Calculators

Date, time, business, school, payroll, and planning tools.

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Time Zone Support

Compare times and plan meetings across different locations.

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Date & Calendar Tools

Calculate deadlines, countdowns, weekdays, quarters, and more.

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Fast and Simple

No registration. No downloads. Just tools that work.

Explore DateTimeToolkit

Browse our most useful date, time, business, personal, school, and planning calculators.

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Most Popular Tools

Start with the calculators visitors are most likely to need.

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New Tools

Recently added planning and project calculators.

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Date Calculators

Core date, calendar, weekday, and countdown tools.

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Time Calculators

Hours, shifts, breaks, overtime, and time remaining.

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Time Zones

Tools for global time conversion and meeting planning.

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Business & Work

Business days, payroll, invoices, contracts, and work planning.

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Personal

Birthdays, anniversaries, holidays, retirement, and personal milestones.

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School & Academic

School days, semesters, academic years, and school countdowns.

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Calendar & Fiscal

Calendar quarters, fiscal years, and fiscal quarters.

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Business & Project Management

Project planning, scheduling, budgeting, productivity, workload, and business management tools.

Featured Tool: Global Time Zone Converter

Compare current times between major cities around the world. It is useful for remote work, international meetings, travel planning, and staying connected across time zones.

Open Time Zone Converter

Why Use DateTimeToolkit?

Whether you're scheduling meetings across time zones, calculating future dates, counting days between events, tracking project timelines, or planning personal milestones, DateTimeToolkit helps you get accurate answers quickly.

No registration. No downloads. Just simple tools that work.

We're continually expanding DateTimeToolkit with additional date, scheduling, business, school, and time-management tools.

new tools