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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for October 14th, 2025

From 2023: It’s Time For A Change: datetime.utcnow() Is Now Deprecated – miguelgrinberg.com

Posted by jpluimers on 2025/10/14

I forgot how I bumped into this, but a while ago I found this interesting 2023 post: [Wayback/Archive] It’s Time For A Change: datetime.utcnow() Is Now Deprecated – miguelgrinberg.com explaining naive (without time zone) and aware (with time zone) date time objects.

It reminded me of Delphi, where NowUTC – as Delphi does have neither naive or aware date time objects – returns  a floating point value (yes, it has a separate TDateTime type, but it represents the number of days that have passed since December 30, 1899 which in face stems from the Windows OLE Automation era* (OLE Automation is a subset of COM), see [Wayback/Archive] DateTime.ToOADate Method (System) | Microsoft Learn.

That method is mentioned in [Wayback/Archive] Why You Should Use NowUTC Instead of Now in Delphi: A Quick Guide – YouTube and Delphi deserves a way better infrastructure of date and time handling.

So this post is also a reminder to myself: figure out if there is an object oriented DateTime library for Delphi yet, and if not see if there is interest to create one similar to [Wayback/Archive] Noda Time | Date and time API for .NET by Jon Skeet.

Delphi references

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Posted in .NET, .NET Framework, .NET Standard, C#, Conference Topics, Conferences, Delphi, Development, Event, Jon Skeet, Python, Scripting, Software Development | Leave a Comment »

Algorism and algorithm are named after Muhammad ibn Musa al-Khwarizmi, founder of algebra (via @annefleurdd)

Posted by jpluimers on 2025/10/14

I was in my 50s when I learned that both algorism and algorithm are named after the 9th-century Persian mathematician Muhammad ibn Musa al-Khwarizmi who founded algebra.

Related:

Via:

–jeroen

Posted in Algorithms, Conference Topics, Conferences, Development, Event, History, Software Development | Leave a Comment »