diff --git a/test_regress/t/t_cxx_equal_to.py b/test_regress/t/t_cxx_equal_to.py
index 3ec7b82b4..cd346b532 100755
--- a/test_regress/t/t_cxx_equal_to.py
+++ b/test_regress/t/t_cxx_equal_to.py
@@ -12,7 +12,7 @@ import vltest_bootstrap
 test.scenarios('simulator')
 test.top_filename = "t/t_cxx_equal_to.v"
 
-test.compile(verilator_flags2=['--binary --timing --trace'])
+test.compile(verilator_flags2=['--binary --trace'])
 
 test.execute()
 
diff --git a/test_regress/t/t_delay_incr_timing.py b/test_regress/t/t_delay_incr_timing.py
index eaed68537..f9892e531 100755
--- a/test_regress/t/t_delay_incr_timing.py
+++ b/test_regress/t/t_delay_incr_timing.py
@@ -11,9 +11,8 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 test.top_filename = "t/t_delay_incr.v"
-test.main_time_multiplier = 10e-7 / 10e-9
 
-test.compile(timing_loop=True, verilator_flags2=['--binary --timing -Wno-ZERODLY'])
+test.compile(verilator_flags2=['--binary -Wno-ZERODLY'])
 
 test.execute()
 
diff --git a/test_regress/t/t_fork_join_none_any_nested.py b/test_regress/t/t_fork_join_none_any_nested.py
index 7bd93561b..c53b55262 100755
--- a/test_regress/t/t_fork_join_none_any_nested.py
+++ b/test_regress/t/t_fork_join_none_any_nested.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 test.execute()
 
diff --git a/test_regress/t/t_fork_timing.py b/test_regress/t/t_fork_timing.py
index b8512ba82..8c92975ff 100755
--- a/test_regress/t/t_fork_timing.py
+++ b/test_regress/t/t_fork_timing.py
@@ -12,7 +12,7 @@ import vltest_bootstrap
 test.scenarios('vlt')
 test.top_filename = "t/t_fork.v"
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 test.execute()
 
diff --git a/test_regress/t/t_func_lib_sub_timing.py b/test_regress/t/t_func_lib_sub_timing.py
index b882e9cc6..7c9bdb51b 100755
--- a/test_regress/t/t_func_lib_sub_timing.py
+++ b/test_regress/t/t_func_lib_sub_timing.py
@@ -12,7 +12,7 @@ import vltest_bootstrap
 test.scenarios('vlt')  # UNOPTTHREADS in vltmt
 test.top_filename = "t/t_func_lib_sub.v"
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 #test.execute()
 
diff --git a/test_regress/t/t_interconnect.py b/test_regress/t/t_interconnect.py
index 186787928..341c8bf04 100755
--- a/test_regress/t/t_interconnect.py
+++ b/test_regress/t/t_interconnect.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=["--binary --timing"],
+test.compile(verilator_flags2=["--binary"],
              fails=test.vlt_all,
              expect_filename=test.golden_filename)
 
diff --git a/test_regress/t/t_mailbox_class.py b/test_regress/t/t_mailbox_class.py
index bbbcfc078..619878281 100755
--- a/test_regress/t/t_mailbox_class.py
+++ b/test_regress/t/t_mailbox_class.py
@@ -11,6 +11,6 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 test.passes()
diff --git a/test_regress/t/t_mailbox_concurrent.py b/test_regress/t/t_mailbox_concurrent.py
index a74b0c7ec..1407fff26 100755
--- a/test_regress/t/t_mailbox_concurrent.py
+++ b/test_regress/t/t_mailbox_concurrent.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 test.execute(expect_filename=test.golden_filename)
 
diff --git a/test_regress/t/t_math_signed5_timing.py b/test_regress/t/t_math_signed5_timing.py
index dd77ccb19..cbfc15a4b 100755
--- a/test_regress/t/t_math_signed5_timing.py
+++ b/test_regress/t/t_math_signed5_timing.py
@@ -12,7 +12,7 @@ import vltest_bootstrap
 test.scenarios('simulator')
 test.top_filename = "t/t_math_signed5.v"
 
-test.compile(verilator_flags2=['--binary --timing'], timing_loop=True)
+test.compile(verilator_flags2=['--binary'])
 
 test.execute()
 
diff --git a/test_regress/t/t_nba_shared_flag_reuse.py b/test_regress/t/t_nba_shared_flag_reuse.py
index 93c3b68da..bd059b0f2 100755
--- a/test_regress/t/t_nba_shared_flag_reuse.py
+++ b/test_regress/t/t_nba_shared_flag_reuse.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=['--timing', '--binary'])
+test.compile(verilator_flags2=['--binary'])
 
 test.execute()
 
diff --git a/test_regress/t/t_package_ddecl_timing.py b/test_regress/t/t_package_ddecl_timing.py
index 092a05315..e1e20eb67 100755
--- a/test_regress/t/t_package_ddecl_timing.py
+++ b/test_regress/t/t_package_ddecl_timing.py
@@ -12,7 +12,7 @@ import vltest_bootstrap
 test.scenarios('simulator')
 test.top_filename = "t/t_package_ddecl.v"
 
-test.compile(verilator_flags2=['--binary --timing'], timing_loop=True)
+test.compile(verilator_flags2=['--binary'])
 
 test.execute()
 
diff --git a/test_regress/t/t_parse_delay_timing.py b/test_regress/t/t_parse_delay_timing.py
index 8143451d7..3c7ce0c65 100755
--- a/test_regress/t/t_parse_delay_timing.py
+++ b/test_regress/t/t_parse_delay_timing.py
@@ -12,6 +12,6 @@ import vltest_bootstrap
 test.scenarios('simulator')
 test.top_filename = "t/t_parse_delay.v"
 
-test.compile(verilator_flags2=['--binary --timing'])
+test.compile(verilator_flags2=['--binary'])
 
 test.passes()
diff --git a/test_regress/t/t_process.py b/test_regress/t/t_process.py
index 2d2607d45..299c161ca 100755
--- a/test_regress/t/t_process.py
+++ b/test_regress/t/t_process.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(v_flags2=["--binary --timing"])
+test.compile(v_flags2=["--binary"])
 
 test.execute(expect_filename=test.golden_filename)
 
diff --git a/test_regress/t/t_process_fork.py b/test_regress/t/t_process_fork.py
index a74b0c7ec..1407fff26 100755
--- a/test_regress/t/t_process_fork.py
+++ b/test_regress/t/t_process_fork.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 test.execute(expect_filename=test.golden_filename)
 
diff --git a/test_regress/t/t_process_rand.py b/test_regress/t/t_process_rand.py
index bef04b878..80206c4ae 100755
--- a/test_regress/t/t_process_rand.py
+++ b/test_regress/t/t_process_rand.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(v_flags2=["--binary --timing"])
+test.compile(v_flags2=["--binary"])
 
 test.execute()
 
diff --git a/test_regress/t/t_process_std.py b/test_regress/t/t_process_std.py
index 7d37afe6f..a53e3de39 100755
--- a/test_regress/t/t_process_std.py
+++ b/test_regress/t/t_process_std.py
@@ -12,7 +12,7 @@ import vltest_bootstrap
 test.scenarios('simulator')
 test.top_filename = "t/t_process.v"
 
-test.compile(v_flags2=["--binary --timing", "+define+T_PROCESS+std::process"])
+test.compile(v_flags2=["--binary", "+define+T_PROCESS+std::process"])
 
 if not test.vlt_all:
     test.execute()
diff --git a/test_regress/t/t_queue_persistence_noinl.py b/test_regress/t/t_queue_persistence_noinl.py
index 4737dc169..5367cb861 100755
--- a/test_regress/t/t_queue_persistence_noinl.py
+++ b/test_regress/t/t_queue_persistence_noinl.py
@@ -15,8 +15,7 @@ test.top_filename = "t/t_queue_persistence.v"
 if not test.have_coroutines:
     test.skip("No coroutine support")
 
-test.compile(timing_loop=True,
-             verilator_flags2=["--binary --timing --fno-inline +define+TEST_NOINLINE"])
+test.compile(verilator_flags2=["--binary --fno-inline +define+TEST_NOINLINE"])
 
 test.execute()
 
diff --git a/test_regress/t/t_scheduling_initial_event.py b/test_regress/t/t_scheduling_initial_event.py
index 4132934b5..c6e56559a 100755
--- a/test_regress/t/t_scheduling_initial_event.py
+++ b/test_regress/t/t_scheduling_initial_event.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=["--timing", "--binary"])
+test.compile(verilator_flags2=["--binary"])
 
 test.execute()
 
diff --git a/test_regress/t/t_selextract_in_paramextends.py b/test_regress/t/t_selextract_in_paramextends.py
index 7bd93561b..c53b55262 100755
--- a/test_regress/t/t_selextract_in_paramextends.py
+++ b/test_regress/t/t_selextract_in_paramextends.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 test.execute()
 
diff --git a/test_regress/t/t_semaphore_class.py b/test_regress/t/t_semaphore_class.py
index bbbcfc078..619878281 100755
--- a/test_regress/t/t_semaphore_class.py
+++ b/test_regress/t/t_semaphore_class.py
@@ -11,6 +11,6 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 test.passes()
diff --git a/test_regress/t/t_semaphore_class_nested.py b/test_regress/t/t_semaphore_class_nested.py
index bbbcfc078..619878281 100755
--- a/test_regress/t/t_semaphore_class_nested.py
+++ b/test_regress/t/t_semaphore_class_nested.py
@@ -11,6 +11,6 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 test.passes()
diff --git a/test_regress/t/t_semaphore_concurrent.py b/test_regress/t/t_semaphore_concurrent.py
index a74b0c7ec..1407fff26 100755
--- a/test_regress/t/t_semaphore_concurrent.py
+++ b/test_regress/t/t_semaphore_concurrent.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 test.execute(expect_filename=test.golden_filename)
 
diff --git a/test_regress/t/t_timing_suspendable_deep.py b/test_regress/t/t_timing_suspendable_deep.py
index 6e837dc78..6bfd7cf18 100755
--- a/test_regress/t/t_timing_suspendable_deep.py
+++ b/test_regress/t/t_timing_suspendable_deep.py
@@ -11,6 +11,6 @@ import vltest_bootstrap
 
 test.scenarios('vlt')
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 test.passes()
diff --git a/test_regress/t/t_unroll_delay.py b/test_regress/t/t_unroll_delay.py
index 47049c4c4..7729ce031 100755
--- a/test_regress/t/t_unroll_delay.py
+++ b/test_regress/t/t_unroll_delay.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=['--binary --timing --trace'])
+test.compile(verilator_flags2=['--binary --trace'])
 
 test.execute(expect_filename=test.golden_filename)
 
diff --git a/test_regress/t/t_uvm_all.py b/test_regress/t/t_uvm_all.py
index 58cc74dde..629816af0 100755
--- a/test_regress/t/t_uvm_all.py
+++ b/test_regress/t/t_uvm_all.py
@@ -13,7 +13,7 @@ test.scenarios('vlt')
 
 test.compile(
     v_flags2=[
-        "--binary --timing -j 0 +incdir+t/uvm",  #
+        "--binary -j 0 +incdir+t/uvm",  #
         "--error-limit 200 --debug-exit-uvm"
     ],
     verilator_make_gmake=False)
diff --git a/test_regress/t/t_var_in_fork.py b/test_regress/t/t_var_in_fork.py
index 7bd93561b..c53b55262 100755
--- a/test_regress/t/t_var_in_fork.py
+++ b/test_regress/t/t_var_in_fork.py
@@ -11,7 +11,7 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(verilator_flags2=["--binary --timing"])
+test.compile(verilator_flags2=["--binary"])
 
 test.execute()
 
diff --git a/test_regress/t/t_wait_order.py b/test_regress/t/t_wait_order.py
index f65962575..22467ab79 100755
--- a/test_regress/t/t_wait_order.py
+++ b/test_regress/t/t_wait_order.py
@@ -12,7 +12,7 @@ import vltest_bootstrap
 test.scenarios('simulator')
 
 test.compile(expect_filename=test.golden_filename,
-             verilator_flags2=['--binary --timing'],
+             verilator_flags2=['--binary'],
              fails=test.vlt_all)
 
 test.passes()
diff --git a/test_regress/t/t_wait_timing.py b/test_regress/t/t_wait_timing.py
index eb0a58c0b..dce50a25c 100755
--- a/test_regress/t/t_wait_timing.py
+++ b/test_regress/t/t_wait_timing.py
@@ -12,7 +12,7 @@ import vltest_bootstrap
 test.scenarios('vlt')
 test.top_filename = "t/t_wait.v"
 
-test.compile(timing_loop=True, verilator_flags2=["--binary --timing -Wno-WAITCONST"])
+test.compile(verilator_flags2=["--binary -Wno-WAITCONST"])
 
 test.execute()
 
diff --git a/test_regress/t/t_while_timing_control.py b/test_regress/t/t_while_timing_control.py
index 5a15b96a8..8303ed1f1 100755
--- a/test_regress/t/t_while_timing_control.py
+++ b/test_regress/t/t_while_timing_control.py
@@ -10,9 +10,8 @@
 import vltest_bootstrap
 
 test.scenarios('simulator')
-test.main_time_multiplier = 10e-7 / 10e-9
 
-test.compile(timing_loop=True, verilator_flags2=['--binary --timing -Wno-ZERODLY'])
+test.compile(verilator_flags2=['--binary -Wno-ZERODLY'])
 
 test.execute()