diff --git a/app/boards/intel_adsp_ace15_mtpm.conf b/app/boards/intel_adsp_ace15_mtpm.conf
index b34d882cb05e..e95b18d97169 100644
--- a/app/boards/intel_adsp_ace15_mtpm.conf
+++ b/app/boards/intel_adsp_ace15_mtpm.conf
@@ -84,6 +84,5 @@ CONFIG_PM_DEVICE_RUNTIME_ASYNC=n
 # Zephyr / logging
 CONFIG_LOG_BACKEND_ADSP=n
 CONFIG_LOG_BACKEND_SOF_PROBE=n
-CONFIG_LOG_OUTPUT_FORMAT_LINUX_TIMESTAMP=y
 CONFIG_WINSTREAM_CONSOLE=n
 CONFIG_LOG_FLUSH_SLEEP_US=5000
diff --git a/app/boards/intel_adsp_ace20_lnl.conf b/app/boards/intel_adsp_ace20_lnl.conf
index 6cd86de9cbe7..beb441d6e6c6 100644
--- a/app/boards/intel_adsp_ace20_lnl.conf
+++ b/app/boards/intel_adsp_ace20_lnl.conf
@@ -61,6 +61,5 @@ CONFIG_PM_DEVICE_RUNTIME_ASYNC=n
 
 # Zephyr / logging
 CONFIG_LOG_BACKEND_ADSP=n
-CONFIG_LOG_OUTPUT_FORMAT_LINUX_TIMESTAMP=y
 CONFIG_WINSTREAM_CONSOLE=n
 CONFIG_LOG_FLUSH_SLEEP_US=5000
diff --git a/app/boards/intel_adsp_ace30_ptl.conf b/app/boards/intel_adsp_ace30_ptl.conf
index 608c250f8232..12aa78162c06 100644
--- a/app/boards/intel_adsp_ace30_ptl.conf
+++ b/app/boards/intel_adsp_ace30_ptl.conf
@@ -65,7 +65,6 @@ CONFIG_PM_DEVICE_RUNTIME_ASYNC=n
 # Zephyr / logging
 CONFIG_LOG_BACKEND_ADSP=n
 CONFIG_LOG_FLUSH_SLEEP_US=5000
-CONFIG_LOG_OUTPUT_FORMAT_LINUX_TIMESTAMP=y
 CONFIG_WINSTREAM_CONSOLE=n
 
 # Userspace options
diff --git a/app/boards/intel_adsp_ace30_wcl.conf b/app/boards/intel_adsp_ace30_wcl.conf
index cf6547edc1fb..621eb719de9f 100644
--- a/app/boards/intel_adsp_ace30_wcl.conf
+++ b/app/boards/intel_adsp_ace30_wcl.conf
@@ -61,5 +61,4 @@ CONFIG_PM_DEVICE_RUNTIME_ASYNC=n
 # Zephyr / logging
 CONFIG_LOG_BACKEND_ADSP=n
 CONFIG_LOG_FLUSH_SLEEP_US=5000
-CONFIG_LOG_OUTPUT_FORMAT_LINUX_TIMESTAMP=y
 CONFIG_WINSTREAM_CONSOLE=n
diff --git a/app/boards/intel_adsp_cavs25.conf b/app/boards/intel_adsp_cavs25.conf
index 0d39b072324c..7cd938ec7ff8 100644
--- a/app/boards/intel_adsp_cavs25.conf
+++ b/app/boards/intel_adsp_cavs25.conf
@@ -53,6 +53,5 @@ CONFIG_LOG_FUNC_NAME_PREFIX_ERR=y
 CONFIG_LOG_FUNC_NAME_PREFIX_WRN=y
 CONFIG_LOG_FUNC_NAME_PREFIX_INF=y
 CONFIG_LOG_FUNC_NAME_PREFIX_DBG=y
-CONFIG_LOG_OUTPUT_FORMAT_LINUX_TIMESTAMP=y
 CONFIG_LOG_TIMESTAMP_64BIT=y
 CONFIG_WINSTREAM_CONSOLE=n
diff --git a/app/boards/intel_adsp_cavs25_tgph.conf b/app/boards/intel_adsp_cavs25_tgph.conf
index 2d6ac891cbd0..0c1d1dab1ad6 100644
--- a/app/boards/intel_adsp_cavs25_tgph.conf
+++ b/app/boards/intel_adsp_cavs25_tgph.conf
@@ -55,6 +55,5 @@ CONFIG_LOG_FUNC_NAME_PREFIX_ERR=y
 CONFIG_LOG_FUNC_NAME_PREFIX_WRN=y
 CONFIG_LOG_FUNC_NAME_PREFIX_INF=y
 CONFIG_LOG_FUNC_NAME_PREFIX_DBG=y
-CONFIG_LOG_OUTPUT_FORMAT_LINUX_TIMESTAMP=y
 CONFIG_LOG_TIMESTAMP_64BIT=y
 CONFIG_WINSTREAM_CONSOLE=n
diff --git a/app/prj.conf b/app/prj.conf
index b0d1bdaa29e3..260488e7852b 100644
--- a/app/prj.conf
+++ b/app/prj.conf
@@ -29,6 +29,8 @@ CONFIG_LOG_PROCESS_THREAD_SLEEP_MS=100
 CONFIG_LOG_BUFFER_SIZE=4096
 # Use stack that is sufficient for SOF backends
 CONFIG_LOG_PROCESS_THREAD_STACK_SIZE=4096
+# Use Linux kernel style timestamp format
+CONFIG_LOG_OUTPUT_FORMAT_LINUX_TIMESTAMP=y
 
 # Requires heap_info() be implemented, but no Zephyr wrapper
 CONFIG_DEBUG_MEMORY_USAGE_SCAN=n