Practical digital tools for everyday life
Business software for growing organizations
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Determine exact ages, count business days between dates, forecast project deadlines, compare international meeting time zones, and track pregnancy milestones.
Designed for students, families, project managers, and remote teams.
Your personal birthdates, family records, and corporate deadlines remain strictly in your browser.
Filter out weekend days (Saturdays & Sundays) for accurate delivery and contract turnaround projections.
Export deadlines, birthdays, and gestational dates into standard iCalendar files for Google and Apple Calendar.
Discover other verified tools in our chronological ecosystem:
Answers to common questions regarding age calculations, leap years, business days, and time zones.
The calculator accounts for leap years, variable month lengths (28, 29, 30, or 31 days), and precise day boundaries between your birthdate and the current target date.
Calendar days count every elapsed 24-hour period. Working business days exclude Saturdays and Sundays to provide realistic project deadlines and commercial turnaround timelines.
It uses standard clinical Naegele's rule, adding 280 days (40 weeks) from the first day of your last menstrual period (LMP) or 266 days from confirmed conception, tracking trimesters and gestational age.
Yes. The Time Zone Meeting Overlap tool compares standard 9:00 AM – 5:00 PM business hours across multiple global cities on a visual 24-hour matrix.
Yes. One-click iCalendar (.ics) exports let you import birthdays, project deadlines, and due dates into Google Calendar, Apple Calendar, or Microsoft Outlook.
In the Deadline Projection tab, choose 'Working Business Days' and enter your offset amount (e.g., +30 business days). The tool skips weekends automatically.
No. All date arithmetic and chronological algorithms execute 100% locally in your browser memory. Nothing is ever sent to a remote database.
Yes. You can calculate elapsed time for historical dates or project future deadlines, milestones, and retirement dates.
Yes. The Age Calculator automatically displays a live countdown in days until your next upcoming birthday.
No. The Age and Date Planning Toolkit is completely free and accessible without account creation.