No time unit specified; did you mean s as in s? – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” No time unit specified; did you mean s as in s? ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: parser and plugin.

Log Context

Log “No time unit specified; did you mean [s] as in [{}s]?”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 String timeString = text(ctx.timeUnit().IDENTIFIER()); 
 if (timeString == null) {
 throw new ParsingException(source(ctx.timeUnit()); "No time unit specified; did you mean [s] as in [{}s]?"; text(ctx
 TimeUnit timeUnit = null;
 switch (timeString) {


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