Disclaimer
Last updated: 2026.
This Disclaimer explains the limits of what MyDayStamp's calculators can tell you, and is meant to be read alongside our Terms of Use. In short: our calculators do the arithmetic correctly, but arithmetic alone isn't always the whole picture.
General information only
Every calculator on this site — age, pregnancy due date, retirement date, business days, anniversaries, and the rest — produces a mathematically calculated estimate based on the dates and settings you enter. None of these results are professional advice of any kind, and none should be treated as a substitute for guidance from a doctor, lawyer, accountant, HR department, or other qualified professional.
Rule of thumb: if a date matters for something with real consequences — a legal filing deadline, a medical appointment, a contractual due date, a retirement decision — verify it against an authoritative, official source before relying on it.
Pregnancy Calculator
The Pregnancy Calculator estimates a due date using a standard 40-week gestational calculation from your last menstrual period or conception date. Actual due dates vary by individual and are properly determined by a healthcare provider using clinical methods such as ultrasound dating. This calculator is not medical advice and should never replace guidance from an OB-GYN or midwife.
Retirement Calculator
The Retirement Calculator estimates a retirement date based on the age or year you specify. It does not account for your specific pension rules, employer policies, government retirement age requirements (which vary by country and can change), or your personal financial readiness to retire. Confirm your actual eligible retirement date with your employer or the relevant government agency, such as the Social Security Administration in the U.S.
Business Days Calculator
The Business Days Calculator counts weekdays (Monday through Friday) between two dates. It does not automatically account for public holidays, which vary by country, region, and even by company. If your use case depends on excluding specific holidays, factor those in manually on top of this calculator's result.
Timezone Converter
The Timezone Converter calculates offsets based on standard time zone rules, including typical daylight saving time transitions where applicable. Daylight saving rules can change by legislation, and some regions observe unusual or non-standard offsets. For anything time-sensitive and consequential (a flight, a legal deadline, a live event), double-check the current local time through an official source close to the date in question.
Age and Pet Age Calculators
The Age Calculator computes exact chronological age from a birth date using standard calendar arithmetic, including leap years. The Pet Age Calculator converts an animal's age to an approximate "human year" equivalent using commonly cited conversion ratios — these ratios are simplifications and vary by species, breed, and size, and are not a veterinary assessment of your pet's actual health or life stage.
No liability for decisions made
As stated in our Terms of Use, MyDayStamp and its operators are not liable for outcomes resulting from decisions made using any calculator on this site. Use these tools as a fast, convenient starting point — not as the final word on anything with real stakes attached.
Questions
If anything on this page is unclear, or if you've spotted a calculation that looks off, please get in touch.