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Length of Service Calculator

Get your exact years, months and days of service, add rehire periods, and see what it means for separation pay, leave, FMLA and 401(k) vesting.

Enter your hire date and your last day, or tick that you still work there. If you left and came back, add each period. You'll get your exact years, months and days, and what they mean for your benefits.

Show what it means in

  1. Your job

Today by default. Change it to see your service on a future date.

Length of service

7 years, 4 months, 26 days

From June 17, 2019 to today, November 11, 2026, counting the last day.

In years
7.40 years
In months
88 months, 26 days
In days
2,705 days

What it means in the Philippines

  • 7 years of service for separation and retirement pay. Your extra 4 months, 26 days is under 6 months, so it doesn't count.
  • Service incentive leave: yes, you have at least 1 year, so you get 5 days of paid leave a year, unless you already get 5 or more days of vacation leave or your employer has fewer than 10 workers.
  • Probation: your 6 months ended December 16, 2019; you should be a regular employee since December 17, 2019.
  • Retirement pay: you have the 5 years needed to retire at 60 to 65.

Coming up

Your 8th work anniversary is June 17, 2027, in 218 days.

  • 10-year anniversaryJune 17, 2029
  • 15-year anniversaryJune 17, 2034
  • 20-year anniversaryJune 17, 2039
  • 25-year anniversaryJune 17, 2044

Quick answer

How do you compute length of service?

Jan 1 to Dec 31

1 year

Both the first and last day count

4 years, 6 months

= 5 years

For PH separation and retirement pay; 4 years, 5 months is 4

US median tenure

4.1 years

Bureau of Labor Statistics, January 2026

Count from your first day through your last day. Take the full years first, then the full months, then the days left over. Some examples:

Length of service for sample start and end dates
StartLast dayServicePH years counted
Jan 1, 2025Dec 31, 20251 year1 year
Mar 1, 2022Oct 30, 20264 years, 7 months, 30 days5 years
Jan 1, 2020Jun 29, 20244 years, 5 months, 29 days4 years
Jan 1, 2020Jun 30, 20244 years, 6 months5 years
Aug 15, 2016Nov 3, 202610 years, 2 months, 20 days10 years

Why the exact number matters

"About five years" is fine for small talk. It isn't fine when your separation pay, retirement pay, leave or 401(k) match depends on it. In the Philippines, 4 years and 6 months counts as 5 years for separation pay, but 4 years, 5 months and 29 days counts as 4. One day can be worth a month's salary. In the US, leaving two weeks before your 3-year vesting date can cost you every dollar of your employer's match.

This calculator gives you the exact years, months and days, adds up separate periods if you were rehired, and tells you what the number means for the benefits that depend on it.

How to use the calculator

Step 1

Enter your dates

Use the start date on your contract or certificate of employment, and your last day. If you still work there, tick the box and it counts to today.

Step 2

Add other periods if you came back

Left and were rehired? Add each period. The days in between don't count.

Step 3

Read what it means

Choose the Philippines or the US to see the benefits tied to your service, and your next work anniversary and milestones.

How the counting works

Both days count. If you started on January 1 and your last day was December 31, you worked one full year, not one year minus a day. Payroll and HR count the last day as a day of service, and so does this calculator. Untick the box if your company counts only to the day before.

Calendar months, not 30-day blocks. From March 1 to October 31 is 8 months, whether the months have 30 or 31 days. Days are counted only for the part after the last full month.

Several periods are added. If you worked 1 year, 5 months and 20 days, left, and came back for 11 months and 15 days, the total is 1 year, 16 months and 35 days. The 35 days become 1 month and 5 days, and the 16 months become 1 year and 4 months, for 2 years, 5 months and 5 days.

What length of service decides in the Philippines

  • Separation pay and retirement pay: a fraction of at least 6 months counts as one whole year. Use the Separation Pay Calculator or the Retirement Pay Calculator for the amount.
  • Retirement eligibility: you need at least 5 years of actual service to retire at 60 to 65 under RA 7641. Rounding up doesn't help here: 4 years and 7 months is not 5 years.
  • Service incentive leave: after 1 year of service, you get 5 days of paid leave a year. Unused SIL is converted to cash at the end of the year.
  • Regularization: probation can't run longer than 6 months. The Regularization Date Calculator gives the exact day.
  • 13th month pay: you're entitled if you worked at least 1 month in the calendar year.

What length of service decides in the US

  • FMLA leave: you need 12 months with your employer. They don't have to be in a row, but work before a break of 7 years or more usually doesn't count. You also need 1,250 hours in the last 12 months, and your employer needs 50 or more employees within 75 miles.
  • 401(k) vesting: your own contributions are always yours. Your employer's match can vest no slower than a 3-year cliff (0% until year 3, then 100%) or a 6-year graded schedule (20% at year 2, plus 20% a year to 100% at year 6).
  • PTO and raises: many employers give more vacation days at 3, 5 or 10 years. Check your handbook, then use the PTO Accrual Calculator.

For a sense of scale, half of US workers had been with their employer 4.1 years or less in January 2026, according to the Bureau of Labor Statistics.

Example: hired June 17, 2019

Let's say you started on June 17, 2019, and you're still there on November 3, 2026. Counting both days:

June 17, 2019 → June 17, 2026 = 7 years

June 17 → October 17, 2026 = 4 months

October 17 → November 3, counting November 3 = 18 days

7 years, 4 months and 18 days

In the Philippines that's 7 years for separation pay, since 4 months is less than 6. If you stay through December 16, 2026, it counts as 8. In the US, you'd be fully vested under any legal schedule, and your 8th work anniversary would be June 17, 2027.

Tips

  • Use the dates on paper. Your contract, certificate of employment or HR record decides, not your memory.
  • Check the 6-month line before your last day. If you're being separated in the Philippines a few days before reaching 6 months into a year, ask whether your effective date includes the 30-day notice period.
  • Look up your vesting date before you resign. A start date a few weeks later can cost or save thousands.
  • Count every rehire. Earlier periods often count for FMLA and sometimes for company benefits. Ask HR how your company treats them.

Questions about length of service

How do I calculate my length of service?

Count from your start date through your last day. Take the full years, then the full months after that, then the remaining days. June 17, 2019 to November 3, 2026 is 7 years, 4 months and 18 days, counting both days.

Does the last day count in length of service?

Usually yes. HR and payroll count your last day as a day of service, so January 1 to December 31 is one full year. The calculator lets you turn this off if your company counts differently.

Does 6 months count as 1 year of service in the Philippines?

For separation pay and retirement pay, yes: a fraction of at least 6 months counts as one whole year. So 4 years and 6 months is 5 years. But the 5 years needed to qualify for retirement must be actual years.

How do I count service if I left and was rehired?

Add each period separately and don’t count the gap. The calculator adds the months of each period and counts every 30 leftover days as one more month. Whether earlier periods count for a benefit depends on the law or your company: FMLA counts them unless the break was 7 years or more.

How many years do I need to be fully vested in my 401(k)?

At most 3 years on a cliff schedule or 6 years on a graded schedule, which is the slowest the law allows. Many plans vest faster. Your own contributions are always 100% yours.

How long is 10 years of service in days?

About 3,652 or 3,653 days, depending on how many leap days fall in the period. The calculator gives the exact number for your dates.

Sources

  • Labor Code of the Philippines Arts. 95, 296, 298, 299 and 302 (RA 7641); PD 851 and its rules on 13th month pay
  • 29 C.F.R. §825.110, Family and Medical Leave Act eligibility (12 months, breaks in service of 7 years, 1,250 hours)
  • IRS, Retirement Topics – Vesting; Internal Revenue Code §411(a)(2)(B) (3-year cliff and 6-year graded maximums)
  • U.S. Bureau of Labor Statistics, Employee Tenure in 2026, released September 24, 2026