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Excel Date and Time Formulas Self-Taught [Kindle Edition]

Ira Krakow

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  • Length: 122 pages (estimated)
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Book Description

Ira's book, based on his Excel knowledge and experience since its inception in 1985, is a comprehensive presentation of Excel's amazing date and time formulas and functions. Topics covered include:

• How to create a time card in Excel, starting with a blank worksheet
• How to display calendar headings in Hindi, Chinese, Yoruba, French, Estonian, and many other languages
• How to construct a formulas that calculate Thanksgiving, Memorial Day, or Columbus Day for any year
• How to create a calendar a book club meeting that meets on the third Tuesday of the month
• How to calculate a person’s age in years, months, days, hours, minutes, and/or seconds
• How to import dates from external databases with the Text to Columns Wizard
• Why the date you enter isn’t the same as the date Excel displays
• When Excel thinks dates are text
• How Excel stores time
• How to create column headings with times separated by 20 minutes
• How to create a date stamp, a date and time that does not recalculate
• How to fix time calculations that are more than 24 hours
• What Excel thinks the century is for a 2 digit year, and how to change it
...and many more.


1. Date Formulas
Entering a Date By Typing It In
Autoformatting: Why Excel Dates Are So Confusing
A Simple Trick To Prevent Autoformatting
The Date Serial Number: How Excel Stores A Date
The Reason For The 1900 and 1904 Date Systems
Converting Between The 1900 And 1904 Date Systems
How Excel Handles Leap Years
Formatting: How Excel Displays A Date
Displaying The Date In Other Languages
Excel’s Builtin Date Formats
Changing The Default Date Display Format
The General Format: What Excel Stores In Its Memory
Date Math: Calculating the Difference Between Two Dates
The DATE() Function: Entering an Excel Date
How DATE() Displays Errors
Two Methods For Entering Today’s Date
MONTH(), DAY(), and YEAR(): The Parts Of A Date
DATE() Math
How Excel Determines The Century For A 2 Digit Year
Converting Date Serial Numbers To Text And Back
TEXT(): Converting A Date Serial Number To Text
DATEVALUE(): Converting Date Text To A Date Serial Number

2. Excel’s Special Date Functions
WEEKDAY(): Day Of The Week
Starting The Weekday On A Different Day
WEEKNUM(): Week Number Of A Date In A Year
EOMONTH(): Last Day Of The Month
EDATE(): Number Of Months From a Date
YEARFRAC(): Part Of A Year Between Two Dates
DAYS360(): Date Interval Based on a 360 Day Year
WORKDAY(): Adding Or Subtracting Workdays From A Date
WORKDAY.INTL(): International Version of WORKDAY()
NETWORKDAYS(): Number Of Workdays Between Two Dates
NETWORKDAYS.INTL(): International Version of NETWORKDAYS()
ROMAN(): The Roman Numeral Of A Number

3. Time Formulas
Time Autoformatting
Times That Cross Over Past Midnight
Scenario: A Hospital Time Card Application
Step 1: Calculating First Shift Hours
Step 2: Turning a Negative Into A Positive
Step 3: Tweaking the Total Time
Another Tricky Date Calculation Problem To Solve
How To Round Time Intervals
Using CEILING() and FLOOR()
Using ROUND() and INT()
Formulas For Getting Parts Of The Time
NOW(): Getting the Exact Date And Time
Entering The Exact Time Without Recalculating
TIME(): Constructing a Time Serial Number
TIMEVALUE(): Creating A Time Serial Number

4. Real-World Examples
Auto Filling Dates
Auto Filling a Cell Range With Date Increments
AutoFilling Day or Month Names
Supplying Autofill Hints
AutoFilling With a Date Formula
AutoFilling a Cell Range With Time Increments
Determining the Quarter Number of a Date
Finding The Nth Day Of The Week In A Month
Finding The Last Day Of The Week In A Month
Calculating A Person’s Age In Years
Method 1: Constructing A Complex IF Formula Using DATE
Method 2: Using DATEDIF
Converting Date Text In YYYYMMDD To A Date Serial Number
Text to Columns: Version 1
Text to Columns: Version 2
How It Was

Product details

  • Format: Kindle Edition
  • File Size: 2921 KB
  • Print Length: 122 pages
  • Simultaneous Device Usage: Unlimited
  • Publisher: The Krakow Press (23 July 2014)
  • Sold by: Amazon Media EU S.à r.l.
  • Language: English
  • ASIN: B00LC7UWL2
  • Text-to-Speech: Enabled
  • X-Ray:
  • Word Wise: Not Enabled
  • Amazon Bestsellers Rank: #791,691 Paid in Kindle Store (See Top 100 Paid in Kindle Store)
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Most Helpful Customer Reviews on (beta) 5.0 out of 5 stars  1 review
1 of 1 people found the following review helpful
5.0 out of 5 stars Good book for mastering Excel's date and time functions 29 Nov. 2014
By P. L. Bornmann - Published on
Verified Purchase
This is a good book for anyone who wants to feel more comfortable with Excel's date and time formulas. I enjoyed reading this book, finishing it in one evening (I'm very comfortable with other aspects of Excel). The book starts by explaining why different versions (Mac vs. PC) and different settings are important if you share worksheets with others. It then explains how date/time data is stored in Excel and why Excel sometimes doesn't recognize dates but does at other times. There are numerous examples from real-world applications and each is clearly explained. And reasons why the functions may not behave as expected are illustrated and explained. In all, the book makes it easy to remember how to handle dates and times in Excel formulas.

My only concern is the price is a bit steep for what reads like a chapter of a larger tome on Excel, but the explanations seem more informative than the chapters I've read in numerous huge books on how to use Excel.
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