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Inside the Math That Will Break Time: The Y2K38 Problem

Inside the Math That Will Break Time: The Y2K38 Problem

by Uday Prasad | Jan 8, 2026

As the world embraces a new year, there is a familiar sense of confidence in our digital progress. We speak fluently about artificial intelligence, automation, smart infrastructure, and autonomous systems. Technology feels mature, dependable, and ever-advancing. But...

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IBM z17 NTS Enhancements: Securing Time Synchronization

IBM z17 NTS Enhancements: Securing Time Synchronization

by Steve Guendert PhD | Dec 9, 2025

In October 2025, Planet Mainframe published the first article of this two-part series on IBM z17 Time Synchronization Enhancements. That article focused on time synchronization resiliency and accuracy enhancements introduced on IBM z17. This article continues with a...

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IBM z17 Time Synchronization Resiliency Enhancements

IBM z17 Time Synchronization Resiliency Enhancements

by Steve Guendert PhD | Oct 29, 2025

Most likely, you have heard the generic acronym RAS, which typically stands for Resiliency, Availability, and Serviceability. However, in the world of time synchronization at IBM, we changed RAS to mean Resiliency, Accuracy, and Security. From RAS to IBMz17 Timing,...

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The cover for Cheryl Watson's Tuning Letter Issue for 2025 Volume 2

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