DATETIME_DIFF() - Mixing up the age of living and dead “people”? [SOLVED]

Hi @Ptt_Pch,

I think you’re aiming at this:

• When the pet is alive you need: Today - DoB
• When the pet died you need: DoD - DoB

That makes it easy:

IF(
{DoD}=Blank(),
DATETIME_DIFF(TODAY(),{DoB},’years’),
DATETIME_DIFF({DoD},{DoB},’years’)
)

I just tried and that works perfectly ! :slightly_smiling_face:
(Yes, I was exactly aiming at this :winking_face: )

I think I may have forget one or 2 comma during my tries.

Anyway, thank you very very much for your help ! :slightly_smiling_face: :thumbs_up:

I’ll play around with this one in my other bases :slightly_smiling_face:
(That’s the best way to learn :winking_face: )

I’m glad it worked out fine for you! :grinning_face_with_smiling_eyes:

Hhhmmm :thinking: …

I’ve got another question though :yum: …

Is there a way to complete or adapt this formula…

IF(
{DoD}=Blank(),
DATETIME_DIFF(TODAY(),{DoB},’years’),
DATETIME_DIFF({DoD},{DoB},’years’)
)

… to get the results in “number of years / number of months” instead of only “number of years” ? :thinking:

I’m pretty sure I’m missing something simple here :blush: but I can’t find what …

I must admit, I’m not very skilled yet to translate my thoughts into logical arguments, but it will come :slightly_smiling_face: , I just need the right trigger :slightly_smiling_face: :winking_face: .

Thanks a lot in advance again :slightly_smiling_face: !

IF(
{DoD}=Blank(),
DATETIME_DIFF(TODAY(),{DoB},’years’),
DATETIME_DIFF({DoD},{DoB},’years’)
)

Add-on :

I tried to modify the ’years’ expression in the formula to get the results in “numbers of years / numbers of months” but I well, it simply didn’t work :roll_eyes: .

I thought about adding :

IF(DATETIME_DIFF(TODAY(),{DoB},’years’)<1,[something to get the age in months]

but I don’t know how to write the end of this and how to implement it :roll_eyes: …

If someone has an answer/idea, I’m all “eyes” :blush:

Many thanks in advance :slightly_smiling_face:

Hi @Ptt_Pch

This formula should do it (replace Today() with relevant date field):

INT(DATETIME_DIFF(TODAY(),{From Date}, ‘months’)/12) & “:” & (DATETIME_DIFF(TODAY(),{From Date}, ‘months’) - INT(DATETIME_DIFF(TODAY(),{From Date}, ‘months’)/12) *12)

Hope this helps!

It helped :winking_face: ! Thanks :winking_face:
At least, it helped me to think outside of the box :slightly_smiling_face: , which helped me with a formula in another base I’ve created :slightly_smiling_face: .

Concerning this particular formula, I’ve found the answer in another post :winking_face:

I don’t know if someone else would be interested in the formula I used, but just in case, I’ll leave it here :grinning: :winking_face: (we never know :winking_face: )

IF(
{DoD}=BLANK(),
DATETIME_DIFF(TODAY(), {DoB}, 'years') & ' years ' & MOD(DATETIME_DIFF(TODAY(), {DoB}, 'months'), 12) & ' months',
DATETIME_DIFF( {DoD}, {DoB}, 'years') & ' years ' & MOD(DATETIME_DIFF({DoD}, {DoB}, 'months'), 12) & ' months'
)

Many thanks for the help :slightly_smiling_face: :thumbs_up:

I wasn’t sure if I needed to create a new topic as it concerns kind of a different problem I’m encountering.
But, it is linked to same DATETIME_DIFF formula, so I thought it was better to post here :winking_face: .

So, to summarize :

Few days ago, I was searching a DATETIME_DIFF formula that would get me the age of my actual living pets and the age of the ones who died.

I created 2 date fields in my pets table to that purpose :

• Date of Birth > {DoB}
• Date of Death > {DoD}

I asked for help and thanks to the Airtable Community my problem was solved :slightly_smiling_face: !

BUT, I now got another problem in another DB with that exact same DATETIME_DIFF formula and I truly don’t understand why :sweat: ,

So, the DB is meant to regroup all the quotes I like (coming from movies, TV Shows, books, songs, etc… ).
Because each quote (often) has an author, I created a table “Authors” where I can put all the informations I want concerning the authors (logical :yum: ) .

In that table I created, 2 date fields, identical to the ones in my pets table :

• Date of Birth > {DoB}
• Date of Death > {DoD}

The purpose is, again, to calculate the age of the author when he/she died or the actual age of the author if he/she is still alive.

I thought that was a no brainer and copied/pasted (I tried to write it in the “formula box” too instead of copying/pasting it) the first formula that worked for my pets (before using the MOD() formula (see above :winking_face: )) :roll_eyes: :

IF(
{DoD}=Blank(),
DATETIME_DIFF(TODAY(),{DoB},’years’),
DATETIME_DIFF({DoD},{DoB},’years’)
)

But, it didn’t work this time :face_with_raised_eyebrow: (this is a screenshot of a “test Author table”)

Did I do something wrong ? :face_with_raised_eyebrow:
If yes, can someone explain me what ? :thinking:
Because, as far as I understand the formula, the logic behind it, to me, seems to be the same … :face_with_raised_eyebrow:

Many thanks in advance :grinning:

IF(
{DoD}=Blank(),
DATETIME_DIFF(TODAY(),{DoB},’years’),
DATETIME_DIFF({DoD},{DoB},’years’)
)

As far as I can tell there is a comma missing in the second line:
It now reads:
DATETIME_DIFF(TODAY(){DoB},‘years’),

but it should be:
DATETIME_DIFF(TODAY(),{DoB}, ‘years’),

That should solve it.

Ouch :grinning_face_with_sweat: ! My bad :grinning_face_with_sweat: !
I don’t know exactly how it happened :grinning_face_with_sweat: … But it happened :grinning_face_with_sweat: …

Correcting that missing comma mistake, I also found an “empty space” mistake (between 2 commas) re-writing that formula :grinning_face_with_sweat:

Thank you very much Sir ! :slightly_smiling_face: :thumbs_up:
Everything works again :slightly_smiling_face:

I’m sorry to ask again :blush: … But I’ve got a tiny question in addition :blush:

Still concerning my “Authors” table…

After correcting my mistakes, I modified a little bit my formula so when an author of a quote doesn’t have a date of birth, the result is “N/A”.

IF(
{DoB}=BLANK(),'N/A', 
IF(
{DoD}=BLANK(),
DATETIME_DIFF(TODAY(),{DoB},'years'),
DATETIME_DIFF({DoD},{DoB},'years')
))

The formula works :slightly_smiling_face: !

I just wanted to add “years” somewhere so when there is an age to calculate, I get something like “63 years”.

I’ve tried this :

IF(
{DoB}=BLANK(),'N/A', 
IF(
{DoD}=BLANK(),
DATETIME_DIFF(TODAY(),{DoB},'years') & ' years ' &,
DATETIME_DIFF({DoD},{DoB},'years') & ' years ' &
))

And other placements of the “years” but I’m not able to find the right place in the formula, so it doesn’t work :neutral_face: …
Maybe I’m just not writing the “years” right :sweat: .
I have had several problems the past few days to add plain text in my formulas :sweat: .

Thanks for the help in advance again :slightly_smiling_face: :blush:

IF(
{DoB}=BLANK(),'N/A', 
IF(
{DoD}=BLANK(),
DATETIME_DIFF(TODAY(),{DoB},'years'),
DATETIME_DIFF({DoD},{DoB},'years')
))

IF(
{DoB}=BLANK(),'N/A', 
IF(
{DoD}=BLANK(),
DATETIME_DIFF(TODAY(),{DoB},'years') & ' years ' &,
DATETIME_DIFF({DoD},{DoB},'years') & ' years ' &
))

Try

IF(
    {DoB}=BLANK(),'N/A', 
    IF(
        {DoD}=BLANK(),
        DATETIME_DIFF(TODAY(),{DoB},'years'),
        DATETIME_DIFF({DoD},{DoB},'years')
        )&' years'
    )

IF(
    {DoB}=BLANK(),'N/A', 
    IF(
        {DoD}=BLANK(),
        DATETIME_DIFF(TODAY(),{DoB},'years'),
        DATETIME_DIFF({DoD},{DoB},'years')
        )&' years'
    )

Perfect ! :slightly_smiling_face: :thumbs_up:
It works ! :slightly_smiling_face:

Thank you very very much !!! :slightly_smiling_face:

IF(
{DoD}=BLANK(),
DATETIME_DIFF(TODAY(), {DoB}, 'years') & ' years ' & MOD(DATETIME_DIFF(TODAY(), {DoB}, 'months'), 12) & ' months',
DATETIME_DIFF( {DoD}, {DoB}, 'years') & ' years ' & MOD(DATETIME_DIFF({DoD}, {DoB}, 'months'), 12) & ' months'
)

This is awesome, @Andre_Zijlstra, @Julian_Kirkness & @Ptt_Pch ! 😉

I used this for actors and historical characters who... 😉 aren't 233 years old! 😉 

I couldn't figure out a work around to parse between the living and dead (I'm sure there are ways I could've figured out 😉 ) but this is THE BOMB!

THANK YOU! 😉

BLESS YOU! 😉