diff --git a/eb_hooks.py b/eb_hooks.py
index bfe34762..df3467e9 100644
--- a/eb_hooks.py
+++ b/eb_hooks.py
@@ -2127,6 +2127,21 @@ def pre_single_extension_numpy(ext, *args, **kwargs):
             update_build_option('optarch', 'march=armv8.2-a')
 
 
+def pre_single_extension_orjson(ext, *args, **kwargs):
+    """
+    Disable test prone to failing due to solar/legal timezone behavior in Etc/UTC on eessi container on Deucalion.
+    """
+    if ext.name == 'orjson':
+        # Disable UTC zoneinfo UTC test, as the behavior can be dependent on how 
+        # `localinfo`s are configured on the system
+        cpu_target = get_eessi_envvar('EESSI_SOFTWARE_SUBDIR')
+        # Make this specific to a64fx, since the problem was observed only there
+        if cpu_target == CPU_TARGET_A64FX:
+            runtest = ext.cfg.get('runtest', '')
+            if 'pytest' in runtest:
+                ext.cfg['runtest'] = runtest + ' -k "not test_datetime_zoneinfo_utc"'
+
+
 def pre_single_extension_hf_xet(ext, *args, **kwargs):
     """
     Pre-single-extension hook for hf_xet (extension of huggingface-hub) on aarch64/generic:
@@ -2681,6 +2696,7 @@ def post_easyblock_hook(self, *args, **kwargs):
 PRE_SINGLE_EXTENSION_HOOKS = {
     'isoband': pre_single_extension_isoband,
     'numpy': pre_single_extension_numpy,
+    'orjson': pre_single_extension_orjson,
     'testthat': pre_single_extension_testthat,
     'hf_xet': pre_single_extension_hf_xet,
     'hf-xet': pre_single_extension_hf_xet,