This message is of concern for every Investor/RT subscriber running a 15.1.25 or earlier version and facing an issue "
Dear Investor/RT subscriber,
The date for the most recent US Daylight Saving Time switch (which took place on March 8, 2026) is missing in one of the Investor/RT configuration file, resulting in incorrect time stamp for download from hsitorical DTN servers
Consequently, Investor/RT user may face the message âCLOCK 1 HOUR OFFSET from DTN server. Check computer clockâ or other issues with the time stamp of downloaded data
To fix the issue right away,
1st step) please stop Investor/RT and delete any data that may have been downloaded since the overnight market session open
This can be done by using the "Delete Historical Data" option in the Data management section of the "Data > Database wizard" menu
2nd step) Locate the holidays.txt file located in the following directory
C:> ProgramFiles> Linnsoft> InvestoRT> Admin
And replace it with the updated holidays.txt file available for download here
3rd step) Restart Investor/RT. The autobackfill feature should then fill any missing data with the right time stamp
Please note that Investor/RT 16.1 beta release are not impacted by this issue.
Reminder: The DST support webpage is located here https://www.linnsoft.com/support/adjusting-daylight-savings-time
'(this is mainly of concern for US based users trading EU markets or European tarders dealming with US futures)
Best regards,
Linn Software Support Team
