Today, let’s travel in time. Pack your photon ray guns, extra underwear, buckle your seat belts and open Excel!
Of course, we are not going to travel in time. (Come to think of it, we are going to travel in time. By the time you finish reading this, you would have traveled a few minutes)
We are going to learn how to travel in time when using Excel. In simple terms, you are going to learn how to move forward or backward in time using Excel formulas.
So are you ready to hit the warp speed? Let’s beam up our Excel time machine.
Tip 0 – Date & Time are an illusion
Most important tip for Excel time travelers is to understand that Excel dates & times are just numbers. So when you see a date like 17-October-2013 in a cell, you can safely assume that it is a number disguised to look like 17th of October, 2013. To see the number behind this, just select the cell and format it as number (from Home ribbon).
Now that you understood this concept, let’s jump in to the 42 tips. All these tips assume a date or time value is in the cell A1.
Staying at present:
- To have latest star date in a cell, just press CTRL+; (of course, in Excel world, star date is nothing but whatever date your computer shows)
- To have current time in a cell, just press CTRL+:
- Of course, we time travelers are lazy. So pressing CTRL+; every day or CTRL+: every second is not cool. That is why you can use =TODAY() in a cell to get today’s date. It will automatically change when you re-open the file tomorrow.
- Likewise, use =NOW() to get current date & time in a cell. Remember, although time changes every second, you will not see the cell updated unless the formula is somehow re-calculated. This is done by,
- Pressing F9
- Saving / re-opening the file
- Making any changes to any cell (like typing a value, changing a value)
- Editing the formula cell and pressing Enter
- To check if today is after or before the date in cell A1, you can use =TODAY() > A1. This will be TRUE if A1 has a past date and FALSE if A1 has a future date.
- To know how many days are there between TODAY and the date in A1, use =TODAY() – A1. This will be a negative number if A1 is a future date. To see just the number of days (without negative sign), you can use =ABS(TODAY()-A1)
- To know how many hours are left between the time in A1 and current time, use =(NOW()-A1)*24.
- While the above formula works, it shows hours and fraction. To just see hours and minutes left, you can use =TEXT((NOW()-A1), “[hh]:mm”). Note: This formula works only when A1 < NOW().
- To know how many weeks are left between TODAY() date and a future date in A1, use =(TODAY() –
A1)/7 - To know how many months are left between TODAY() and date in A1, use = DATEDIF(TODAY(), A1, “m”).
Related: How to use DATEDIF function. - To know which month is running, use =MONTH(TODAY())
- To see the month name instead of number, use =TEXT(TODAY(), “MMMM”). This shows the month’s name in your Excel language.
- To know which year is running, use =YEAR(TODAY())
- To see the last 2 digits of the year, you can use =RIGHT(YEAR(TODAY()), 2)
- To find the day of week for TODAY, use =WEEKDAY(TODAY()). This will give a number (1 to 7, 1 for Sunday, 7 for Saturday).
- To see the weekday name instead of number, use =TEXT(TODAY(), “DDDD”).
- To see today’s date alone, use =DAY(TODAY())
- To know if the present year is a leap year or not, see this.
Going back in time
- To go back by 6 days from the date in A1, use =A1-6
- To go back to last Friday use =A1-WEEKDAY(A1, 16). This works in Excel 2010, 2013. If your time machine is old (ie you have Excel 2003 or earlier versions), you can use =A1-CHOOSE(WEEKDAY(A1), 2,3,4,5,6,7,1)
- To go back by 5 weeks, use =A1-5*7
- To go back to start of the month, use =DATE(YEAR(A1), MONTH(A1),1)
- To go back to end of previous month, use = DATE(YEAR(A1), MONTH(A1),1) – 1
- Or use =EOMONTH(A1,-1)
- To go back by 2 months, use =EDATE(A1, -2)
- To go back by 27 working days, use =WORKDAY(A1, -27). This assumes, Monday to Friday as working days.
- To go back by 27 working days, assuming you follow Monday to Friday work week and a set of extra holidays, use =WORKDAY(A1, -27, LIST_OF_HOLIDAYS)
- To go back by 7 quarters, use =EDATE(A1, -7 * 3)
- To go back to the start of the year, =DATE(YEAR(A1), 1,1)
- To go back to same date last year, = DATE(YEAR(A1)-1, MONTH(A1), DAY(A1))
- To go back a decade, =DATE(YEAR(A1)-10, MONTH(A1), DAY(A1))
Going forward in time
We, time travelers are smart people. Once you know that turning the knob backwards takes you to past, you know how to go to future. So I am giving very few examples for going forward in time.
- To go to the 17th working day from date A1, assuming you use Sunday to Thursday workweek, use =WORKDAY.INTL(A1,17,7). This formula works in Excel 2010 or above.
- To go to next hour, use=A1+1/24
- To go to next day morning 9AM, use =INT(A1+1) + 9/24
- To go to 18th of next month, use =DATE(YEAR(A1), MONTH(A1)+1, 18)
- To go to end of the current quarter for date in A1, use =DATE(YEAR(A1), CHOOSE(MONTH(A1), 4,4,4,7,7,7,10,10,10,13,13,13),1)-1
- To go to a future date that is 4 years, 6 months, 7 days away from A1, use =DATE(YEAR(A1)+4, MONTH(A1)+6, DAY(A1)+7)
Finding the amount of time traveled
- To know how many days are between 2 dates (in A1 & A2), use =A1-A2
- To know how many working days are between 2 dates, use =NETWORKDAYS(A1, A2) (remember: A1 should be less than A2).
Fixes for common time travel hiccups
- If you see ###### instead of a date in a cell, try making the column wider. If you still see ######, that means the date value is not understandable by Excel (negative numbers, dates prior to 1st of January 1900 etc.)
- Often when pasting date values in to Excel, you notice that they are not treated as dates. Use these techniques to fix.
- If you pass in-correct values or use wrong parameters, your date formulas show an error like #NUM or #VALUE. Read this to understand how to fix such errors.
Quiz time for time travelers
I see that you safely made it here. I hope you had a good journey. Let me see how good your time traveling is. Answer these questions:
- Write a formula to take date in A1 to next month’s first Monday.
- Given a date in A1, find out the closest Christmas date to it.
Building your own time machine? Check out these tips too
If you work with date & time values often, then learning about them certainly pays off. Read below articles to one up your time travel awesomeness.
- Using Date & Time in Excel
- How to calculate common holiday dates in Excel?
- How to calculate payroll dates?
- How to sort a bunch of birth dates by birthday?
- Check if two dates are in same month
Good luck time traveling. I will see you again in future 🙂
PS: Make sure you attempt the challenges and post your answers in comments.
54 Responses
Hi Chandoo,
This is awesome *****
Found 6, just one remaining, and I think it should be in sheet2, as I found 1 in each sheet but didn’t found anything in sheet2 (till yet, I am keep looking).
Very cleaver and amazing work, enjoyed a lot…
Thanks Chandoo for this beautiful work.
Wish you have great time at Hyderabad.
Regards,
Khalid
go to AB201 on Sheet2, you will see Panda there !!!
Press F2 in Cell A1 and then read the actual text !!
In Sheet 2 go to Cell AB201. You will find one.
There is one on first sheet, if you press F5 (goto), the word PANDA can be seen there.
Oh I found the last one, (custom format hmm)
Truly Amazing and the beauty of this forum.
You are an Artist Chandoo.
Hi Chandoo,
Wow, you really have magical skills. I am in office and this sheet ate up an hour of my time….didn’t expect that.
I could find 5 of the 7 pandas. Didn’t know one could hide so much data in innocent looking excel sheets.
Thanks!
-Ranjith
yeah! found all 7 panda, time to go to china.
This was very fun and challenging, thanks for posting! I found all of them (well, Sheet1 was tricky, it seems you’re supposed to find the cell and type it in yourself?). Wasn’t sure if it was cool to post the answers here or not, though. Guess I’ll post SPOILER ALERTS so you can skip the rest of the message if you don’t want to see what I came up with.
SPOILER! SPOILER! SPOILER!
My answers appear below.
Sheet1: type PANDA in cell PAN3489
Sheet2: cell AB201
Sheet3: cell J8 (Picture1)
Sheet4: cell H9
Sheet5: expand Chart1
Sheet6: formula = “=MID(ADDRESS(9,2^3*23*59,4),1,3)&BIN2HEX(11011010)”
Sheet7: named range (A1:I18)
Wookie – I would love to get a walkthrough of HOW you figured out sheet 1 and a bit of a formula walkthrough for Sheet 6.
Basically, I don’t know how I could have found that particular cell input message on Sheet 1.
And I have no clue about the BIN2HEX part of the formula…before your hint I was able to get the output to read AN9DA. The change to MID and the addition of that ‘,1’ changed it to PANDA…
Hi Rachel,
To get to the cell in sheet 1 you can press: ctrl G. Then special and then data validation: all. This is also the way to find panda in sheet 7 😉
I agree, this was a fun way to test your ability to navigate through the functionality of Excel! And since you already posted the SPOILER ALERT warning, I should be safe posting a reply to your comment with some solutions of my own… 🙂
I found all the same solutions you did with a few minor changes:
Sheet1: If you notice, cell PAN3489 has Custom formatting. You don’t have to type “PANDA”, just the number 1.
Sheet6: The MID function works as you described, but you can also simply change the RIGHT function to the LEFT function without having to add in the start and end positions for MID.
Sheet7: Yes, the range name for these cells is called PANDA, but you don’t see the actual word in the sheet unless you change the Zoom setting to 39% or less (hence the clue “Z” 39%).
Thanks again for a great post, Chandoo!!
I must admit sheet 7 defeated me, but I have some corrections
Sheet 1 – you type =LEFT(ADDRESS(ROW(),COLUMN(),2),3)&DEC2HEX(ROW())
in PAN3489 to get “PANDA1”. As it is the first panda. I think panda1 is appropriate, but maybe
=LEFT(ADDRESS(ROW(),COLUMN(),2),3)&LEFT(DEC2HEX(ROW()),2)
is better, because it leaves you with “PANDA”
Sheet 6 – I corrected to
=LEFT(ADDRESS(9,2^3*23*59,4),3)&BIN2HEX(11011010)
Picky I know, but who uses mid when a right or a left will do?
I know; that was weird. I did try using a LEFT formula, but I kept getting the $ prefix from the cell address. So I tried a couple of variations using MID and it gave me the result I needed. This is actually the first time I’ve ever tried using a MID formula starting at the first character, but I wasn’t trying to spend a lot of time on it, so I went with what worked.
Sheet1: Type 1 in PAN3489
Sheet6: =LEFT(ADDRESS(9,2^3*23*59,4),3)&BIN2HEX(11011010)
Slight change…
For sheet 1 goto PAN3489 and type in 1. The word PANDA appears.
Love it!
Sheet 6 was my favorite. How many people still know what binary, hex and octal are? :o)
—–Spoilers———
Alternate Solutions
1) Type “1” (not the quotes) in PAN3489 and Excel will turn “1” into “PANDA”
6) The formula Wookie lists also works with LEFT in place of MID
Lot of fun. Solve time ~20 mins.
@ Rob
How this 1 turns to PANDA .. means How this is done by excel any formula or something in VBA
Also how to reach cell PAN3489 .. there are no clues given on sheet 1
You reach PAN3489 by pressing Ctrl + End to bring you to the last used cell in Sheet 1
@ Navdeep I found PAN3489 by going to “Formulas” and then “Name Manager” and saw there was a field called “Clue1” listed in the Name Manger that references 3489. Finding PAN as the column index was just a bit of a lucky guess through trial and error. Then a note in cell PAN3489 when you navigate there says to try “typing something.” I tried scrolling through the Format Cells menu to see if the text typed in the cell needed to be formatted a certain way, and noticed that “1= Panda” was listed in the custom text menu and tried it. A bit brute force, but I think the desired text entry.
Clever!
The Data Validation one took me a bit. Had to resort to brute force.
Thanks for the fun!
Awesome! Found 7 pandas in 20 minutes)))
Sheets 1 and 6 were the best!
Thanks!
Sheet 1: The answer is not type in Panda. Type 1. There’s a special formatting that replaces 1 with Panda.
Sheet 6: Just replace right with left, don’t worry about changing the numbers.
Sheet 7: I found the named range, but don’t know what the Z 39% means. Thoughts?
when you changed the zoom level to 39% or below, you will see the name of namedrange (if any)
WOW! I’ve just found the secret eighth PANDA!
Truly awesome!!!
Am I the first one who figured that out, guys?
Btw, thanks for the puzzle!
Found them all – very inventive. Had to think outside the “box”. Great fun!
It was truly a artists work
chandoo you are grate
all sheets are deigned different from each other
@Wookiee: you have a good for others by posting the answers, Thank you too
it is fun and great invent
Guys I Got 8 PANDA in the workbook… 🙂
[Look Chandoo has against played great trick by reserving one more ester egg, but we are also fan of none other than Chandoo, who can get hold of hidden 8th (untold) ester egg]
Here is the full list:
1) Sheet1: Type 1 in Cell PAN3489
2) Sheet2: Goto Cell AB201
3) Sheet3: Check the picture located above cell J8
4) Sheet4: Goto Cell H8
5) Sheet5: Cells, viz., A4, A10, A16, A21, A29 have all alphabets of PANDA
6) Sheet5: Resize the chart to see PANDA
7) Sheet6: Correct the formula as LEFT(ADDRESS(9,2^3*23*59,4),3)&BIN2HEX(11011010)
8) Sheet7: Range A1:I18 is named as PANDA
1) Sheet1: Type 1 in Cell PAN3489
2) Sheet2: Goto Cell AB201
3) Sheet3: Check the picture in the cell J8
4) Sheet4: Goto Cell H9
5) Sheet5: Resize the chart to see PANDA
6) Sheet6: Correct the formula as LEFT(ADDRESS(9,2^3*23*59,4),3)&BIN2HEX(11011010)
7) Sheet7: Range A1:I18 is named as PANDA
Actually, for sheet7, if you set the zoom to 39% or less, you will see the word PANDA. Yet another PANDA! 🙂
Hi,
i want to know how to manage bill wise manage vendor invoice and payment in excel please suggest.
Thanks,
Ram
Hi Chandoo!
You rock with these amazing skills!
Sheet 1: ??
Sheet 2: ??
Sheet 3: Cell J8
Sheet 4: Cell H9
Sheet 5: A4, A10, A16, A21, A29
Sheet 6: B2
Sheet 7: ???
Sheet1 F5
Sheet2 AB201
Sheet3 Picture1
Sheet4 H9
Sheet5 Chart
Sheet7 Zoom to 30%
I love this time of year and look forward to Chandoo’s egg hunts. Whilst I got all the pandas, I do not understand how sheet 7 works; Where is the source data and why does it only work when zoomed out to 39% or more?
@Leon-K
When you change the zoom level to be less than 40% Excel shows the Ranges which have Names applied to them
Ha ha, that’s fantastic. Thanks Hui. @Chandoo, thanks for yet another method to decrypt worksheets in order to re-build or explain them better to clients.
These were fantastic and kept me intrigued until I could finish them. (Had to look here for help with Sheet1!) Definitely learning a lot about some new formulas. Awesome, Chandoo!
Ok, just saw the notes on the Zoom 39% on Sheet 7. Can someone explain what’s happening here and why PANDA shows up at that level?
@Bryan
When you change the zoom level to be less than 40% Excel shows the Ranges which have Names applied to them
Wow, great exercise.
Tried and solved 5 out of seven and other two solved incorrectly (1 & 6).
Thanks 🙂
Hi Chandoo,
Gr8 …had fun in searching it. I got 5 out of 7.
You are brilliant.
Found all except in sheet6 as not able to understand formula.
thanks
Raja Aurongzeb
Hi,
I am not able to find 1st Panda, which is on Sheet1. Rest all I have found.
Wonderful Chandooji… you are brilliant.
Wow.. Awesome set of puzzles Chandoo!!
Am now trying to figure out how sheet 7 was prepared.. 39% Zoom setting logic.. Can someone help me with a hint?
Thanks!
Looks like this is an XL feature.. Zooming out the worksheets below 40% level, by default displays all named ranges (more than 2 cells)! Had not come across this till date..
Great works! Was having FUN in finding the pandas. Thanks.
btw, I used one basic function (Find, CTRL+F) to find 2 pandas. Simply Find “Panda” within “Workbook”… To my surprise, seems no one mentioned that in the process.
On other other hand, Selection and Visibility Pane is a handy tool to see if there is “extra” shapes for locating pandas hidden in chart/picture.
Had fun doing this, Found 5 and the rest I saw clues on here 🙂
I really enjoyed when finding the pandas.And also I am so surprised.Very Nice thought and Excellent.
This was fun! Thanks!
Nice and fun post. Thanks, Chandoo!