Get the lib time in the thingy 91

[ActiTAG]

Hello,

I'm coming to you with a beginner question, I would like to use the functions localtime, difftime, strftime but I saw that time.h is not included. Is it possible to get it or to do the same thing as these functions? I tried including NEWLIB but there is no time lib.

In my project I get a timestamp and I would like to have the difference of time elapsed between this timestamp and the timestamp of now.

Thanks in advance for your help!

[Karl Ylvisaker]

Hello,

Thank you for your patience. 

ActiTAG said:

Humm I set the value to 60 and 1800

Are you referring to the CONFIG_DATE_TIME_UPDATE_INTERVAL_SECONDS value?
It only configures how often the date time is updated, in seconds, so it does not affect the current date time value. 

ActiTAG said:

00000179fae6436e / 00000179fb00561a (Mon Jul 27 1970 19:05:45 GMT+0000) ...

Is this immediately upon starting your device, or is it after having received the network time and date? How did you print out and convert these values to the Jul 27 1970 date?

Best regards,
Karl

[ActiTAG]

Hello, thank you for your answer! 

Karl Ylvisaker said:

It only configures how often the date time is updated, in seconds, so it does not affect the current date time value. 

Yes, I know but even if I'm waiting for the update of the date_time (so 60 and 1800s), I received those printed values (00000179fae6436e / 00000179fb00561a). I used a site to convert it to a readable value ( I don't want to convert it in my code, it's not necessary). 

From what I see, I have never received the network time and date. Maybe I forget to add something? I made the same as this topic :nRF9160 date-time example - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com)

If you have an idea I would be glad to hear it! 

Kind Regards,

[Karl Ylvisaker]

Hello,

ActiTAG said:

thank you for your answer! 

No problem at all, I am happy to help!

ActiTAG said:

Yes, I know but even if I'm waiting for the update of the date_time (so 60 and 1800s), I received those printed values (00000179fae6436e / 00000179fb00561a). I used a site to convert it to a readable value ( I don't want to convert it in my code, it's not necessary). 

From what I see, I have never received the network time and date. Maybe I forget to add something? I made the same as this topic :nRF9160 date-time example - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com)

Are you checking the return value of date_time_now? Is it successful?
The function will return an error if it does not have a valid timestamp, or if it fails for another reason.
Please also make a call to date_time_is_valid before starting your other date-time operations, to check that the library has successfully received a valid initial timestamp.

Best regards,
Karl

[ActiTAG]

It was my fault sorry, I have printed the hex value not the decimal and when I saw the decimal it was the good one. Thanks for your time and help It's working well !