Is London always on GMT?

Q: Is London always on GMT?

```html Quick Answer: No, London is not always on GMT. It uses Greenwich Mean Time (GMT) during winter but switches to British Summer Time (BST), which is GMT+1, in the summer months. London follows GMT in the colder months, typically from late October to late March. During this period, the clocks are set to the standard time zone, which matches Coordinated Universal Time (UTC+0). When summer arrives, London switches to British Summer Time (BST), moving clocks forward by one hour to GMT+1. This shift helps make better use of daylight in the evenings. So, London alternates between GMT and BST each year, meaning it’s not always on GMT. ```

By Henrick Yau | Published: December 26, 2025 | Updated: December 26, 2025 Fact Checked

Category: 📂 Time Zones

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  <strong>Quick Answer:</strong> No, London is not always on GMT. It uses Greenwich Mean Time (GMT) during winter but switches to British Summer Time (BST), which is GMT+1, in the summer months.
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<p>London follows GMT in the colder months, typically from late October to late March. During this period, the clocks are set to the standard time zone, which matches Coordinated Universal Time (UTC+0).</p>

<p>When summer arrives, London switches to British Summer Time (BST), moving clocks forward by one hour to GMT+1. This shift helps make better use of daylight in the evenings.</p>

<p>So, London alternates between GMT and BST each year, meaning it’s not always on GMT.</p>

Is London always on GMT?

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