Skip to main content
Home
for DLMS smart meters
Open source solutions for DLMS smart metering

Main navigation

  • Home
  • Products
  • About us
  • Open Source
  • Community
  • Forum
  • Downloads
User account menu
  • Log in

Breadcrumb

  1. Home
  2. Node
  3. Wrong Time Since Epoch On Call Time_toUnixTime2()

Wrong time since epoch on call time_toUnixTime2()

Profile picture for user Dmitry
By Dmitry , 27 January, 2025
Forums
Gurux.DLMS

Hi, Mikko!
I got lates Gurux C and on call function
uint32_t secs_epoch = time_toUnixTime2(tmp->dateTime);
get wrong time in seconds since epoch.

dlmsVARIANT* tmp = NULL;
ret = va_getByIndex(lst_values, column, &tmp);
if (ret != DLMS_ERROR_CODE_OK)
{
return ret;
}
//here tmp is DateTime:
tm_sec 0
tm_min 0
tm_hour 17
tm_mday 27
tm_mon 0
tm_year 125
tm_wday 1
tm_yday 26
tm_isdst 0

after call
uint32_t secs_epoch = time_toUnixTime2(tmp->dateTime);
i get value secs_epoch = 3946986000. (Thu Jan 27 2095 16:00:00 GMT+0000)

Thanks!

Profile picture for user Dmitry

Dmitry

1 year 7 months ago

I think error in gxmktime()…

I think error in gxmktime().
struct tm::tm_year since 1900 instead 1970.

Profile picture for user Kurumi

Kurumi

1 year 7 months ago

Hi, Thank you for pointing…

Hi,

Thank you for pointing this out. It's now fixed. Get the latest version.

BR,
Mikko

  • Create new account
  • Reset your password

Hire Us!

Latest Releases

  • Wed, 08/26/2026 - 09:04
    Gurux.DLMS.Python 1.0.203
  • Mon, 08/17/2026 - 11:28
    Gurux.DLMS.Python 1.0.202
  • Mon, 08/17/2026 - 09:47
    gurux.dlms.cpp 9.0.2608.1701
  • Mon, 08/17/2026 - 09:25
    gurux.dlms.c 9.0.2608.1701
  • Mon, 07/27/2026 - 12:37
    gurux.dlms.cpp 9.0.2607.2701

New forum topics

  • Security vulnerability report — request for a private contact (GuruxDLMS.c / ANSI C)
  • Topic: Insufficient Memory Error When Reading Class 7 Profile Generic Objects
  • SN ReadResponse returns all-null values when response spans multiple HDLC frames
  • Gurux.Serial.Android 3.0.6 – CH340 (HL-340) USB-Serial Adapter Not Working,
  • Trying to talk to a L&G E360 meter (Using Python Gurux)
More
RSS feed
Privacy FAQ GXDN Issues Contact
Follow Gurux on Twitter Follow Gurux on Linkedin