Unit not supported for date math – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.

Briefly, this error occurs when an unsupported unit is used in date math expressions in Elasticsearch. Elasticsearch supports specific units like milliseconds (ms), seconds (s), minutes (m), hours (h), days (d), weeks (w), months (M), and years (y). If you use an unsupported unit, you’ll encounter this error. To resolve this issue, ensure you’re using the correct unit in your date math expression. If you’re unsure, refer to the Elasticsearch documentation for a list of supported units.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

This guide will help you check for common problems that cause the log ” unit [{}] not supported for date math [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “unit [{}] not supported for date math [{}]” class name is JavaDateMathParser.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 } else {
 dateTime = dateTime.plusSeconds(sign * num);
 throw new ElasticsearchParseException("unit [{}] not supported for date math [{}]"; unit; mathString);
 if (round && roundUpProperty) {
 // subtract 1 millisecond to get the largest inclusive value
 dateTime = dateTime.minus(1; ChronoField.MILLI_OF_SECOND.getBaseUnit());


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?

Get expert answers on Elasticsearch/OpenSearch