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CChidinmachidinma.devMay 17 · 10 min read

Hybrid Logical Clocks: Having your cake and eating it, too

We started this series by looking at how physical time breaks down. Clocks drift, they jump, and they lie. Then we replaced them with causality, counters, and ancestry. We tried to get rid of time ent

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KKKumar Kisalaykrisalay.hashnode.devJan 4 · 6 min read

Building a Hybrid Logical Clock (HLC) from Scratch in Go

Distributed systems force engineers to confront an uncomfortable fact: time is unreliable. On a single machine, time.Now() feels good enough. Across regions, networks, and failure modes, it quickly becomes a source of subtle, expensive bugs. This po...

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SShashaankarsystemsnsentience.hashnode.devDec 11, 2025 · 2 min read

Time, clocks and the ordering of events in a distributed system

Time, clocks and the ordering of events in a distributed systemL. Lamport, Communications ACM 1978 SummaryThe paper introduces the happened-before relation and logical clocks to define a consistent partial ordering of events in a distributed system. ...

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MMMirza Mahrab Hossainblog.mahrabhossain.meJun 28, 2025 · 6 min read

When Time Isn't Universal: The Brilliance of Lamport's Logical Clocks (1978)

Imagine a world where "before" and "after" aren't always clear. This isn't a philosophical musing, but a very real problem in distributed systems networks of independent computers that communicate by sending messages. When each computer has its own c...

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AMAbhinandan Mishraabhinandanmishra1.hashnode.devMar 19, 2023 · 12 min read

Distributed System

Distributed systems are used in various applications ranging from e-commerce websites to large-scale data processing applications. A distributed system is a collection of independent computers that communicate and coordinate with each other to achie...

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MDMilan Dangolmilaan.hashnode.devOct 7, 2022 · 5 min read

NTP: Deep level

What is an NTP server? In a network of computers, the Network Time Protocol (NTP) is a protocol that is used to synchronize computer clock timings. Computer clock timings are synchronized to a millisecond, and occasionally to a fraction of a millisec...

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UUdaysinhknowthatstuff.hashnode.devJul 21, 2022 · 3 min read

Logical clocks - Lamport Clocks and Vector Clocks

Why do we need logical clocks? The concept of time is fundamental to our way of thinking about ordering of events in a system. Since physical clocks in a distributed system can drift among each other, it will be very difficult to enforce total orderi...

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#logical-clock

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#logical-clock

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Trending tags this week

Hybrid Logical Clocks: Having your cake and eating it, too

Building a Hybrid Logical Clock (HLC) from Scratch in Go

Time, clocks and the ordering of events in a distributed system

When Time Isn't Universal: The Brilliance of Lamport's Logical Clocks (1978)

Distributed System

NTP: Deep level

Logical clocks - Lamport Clocks and Vector Clocks