Years of Service Calculator: Exact Time Between Two Dates

How the arithmetic works

Whole years first: the number of full anniversaries between the two dates. Then whole months past that anniversary, then the days left over. It is the same count a payroll system does, and it never rounds a partial month up - twenty-nine years and eleven months is not thirty, however close the party is to the date.

What to do with the number

On the name print, the years of service is one typed line of up to twenty characters, so the tool hands back the line in a form that fits: "32 years, 4 months" is twelve characters; "32 years" is eight. Longer is possible, but the line that reads best on the print is usually the shorter one.

If the number is heading for a speech rather than a print, the send-off guide covers the party, the cards and the words around it; what to write in a retirement card takes the short version.

Why we do not round

A career of 29 years and 11 months is nearly thirty, and plenty of speeches say so. The print is different: it is a record, it hangs on a wall for years, and the whole point of the four typed lines is that each one states a fact. The tool gives you the exact figure; whether the speech rounds it up is between the speaker and the room.

Every figure this tool returns is calendar arithmetic on the two dates you enter: whole years between them, then whole months past the last anniversary, then the leftover days. Nothing is estimated, and no convention about what counts as a start date is applied - that belongs to the workplace, and the tool says so rather than guessing.

On the name print the years of service is one typed line of up to twenty characters, and the result card shows the figure in exactly that form.

Written by Craig Fearn, The Retirement Gift Co.

A few practical answers

How are years of service calculated?

Count the full anniversaries passed for the years, then whole months past that anniversary, then days. The tool does exactly this and never rounds a partial month up.

Does the time round up to the next year?

Not here. Twenty-nine years and eleven months prints as twenty-nine years, eleven months. Whether a speech rounds it up is a different question with a different audience.

What date should I use as the start?

Whichever date the workplace treats as their start - that is a fact about the employer, not the calendar, so the tool takes the date you give it. Most people use the first day of employment from their contract or their leaving card's wording.