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GreptimeTeam · Dec 25, 2024 · a6a892b · a6a892b
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diff --git a/docs/reference/time-durations.md b/docs/reference/time-durations.md
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+---
+keywords: [time durations, time spans, time units]
+description: Learn how GreptimeDB utilizes time durations to represent time spans in SQL queries, configuration files, and API requests with supported suffixes and examples.
+---
+
 # Time Durations
 
 GreptimeDB utilizes time durations to represent time spans in various contexts,

diff --git a/i18n/zh/docusaurus-plugin-content-docs/current/reference/time-durations.md b/i18n/zh/docusaurus-plugin-content-docs/current/reference/time-durations.md
@@ -1,3 +1,8 @@
+---
+keywords: [时间范围, 时间跨度, 时间单位]
+description: 了解 GreptimeDB 中时间范围对象的表示方法，包括支持的时间单位和示例。
+---
+
 # 时间范围对象
 
 GreptimeDB 使用时间范围对象来表示各种上下文中的时间跨度，