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Complete directory of all date calculation tools available on DateTools.net

🧮Date Calculators

Date Calculator
Add or subtract days, weeks, months
Days From Today
Find future dates
Weeks From Today
Calculate weeks ahead
Days Ago
Find past dates
Weeks Ago
Calculate weeks back

💼Business Days

Business Days Calculator
Working days computation
Business Days From Today
Project working days

📊Date Difference

Days Between Dates
Count days between two dates
Date Difference
Full interval breakdown
Time Between Dates
Hours and minutes precision

🎂Age & Birthday

Age Calculator
Exact age computation
Birthday Calculator
Birthday countdown & zodiac

⏳Countdowns

All Countdowns
Major holiday tracking
Days Until Christmas
Christmas countdown
Days Until New Year
New Year countdown

🛠️Other Tools

Week Number
ISO week identification
Leap Year Calculator
Bissextile verification

📅 Popular Days From Today

7 days14 days21 days30 days45 days60 days90 days100 days120 days180 days365 days

⏪ Popular Days Ago

7 days ago14 days ago30 days ago60 days ago90 days ago180 days ago365 days ago

📆 Popular Weeks

1w ahead1w ago2w ahead2w ago4w ahead4w ago6w ahead6w ago8w ahead8w ago12w ahead12w ago26w ahead26w ago52w ahead52w ago

💼 Popular Business Days

5 business days10 business days15 business days20 business days30 business days45 business days60 business days90 business days

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Total Pages: 675+ including all dynamic date calculations