diff --git a/assertions/assertions.go b/assertions/assertions.go
index 7169007a..f4ed2fcf 100644
--- a/assertions/assertions.go
+++ b/assertions/assertions.go
@@ -11,6 +11,7 @@ import (
 
 	"github.com/pkg/errors"
 	"github.com/spf13/cast"
+	"github.com/tj/go-naturaldate"
 )
 
 type AssertFunc func(actual interface{}, expected ...interface{}) error
@@ -954,7 +955,7 @@ func ShouldEqualTrimSpace(actual interface{}, expected ...interface{}) error {
 }
 
 // ShouldHappenBefore receives exactly 2 time.Time arguments and asserts that the first happens before the second.
-// The arguments have to respect the date format RFC3339, as 2006-01-02T15:04:00+07:00
+// The arguments have to respect the date format RFC3339 (ie. 2006-01-02T15:04:00+07:00) or humanize format (ie. now, tomorrow, yesterday, 5 minutes ago)
 //
 // Example of testsuite file:
 //
@@ -969,6 +970,13 @@ func ShouldEqualTrimSpace(actual interface{}, expected ...interface{}) error {
 //	    script: "echo {{.time}}"
 //	    assertions:
 //	      - result.systemout ShouldHappenBefore "{{.time_with_5s_after}}"
+//	 - name: test assertion with humanize format
+//	   steps:
+//	   - type: exec
+//	     script: "echo {{.venom.datetime}}"
+//	     assertions:
+//	       - "result.systemout ShouldHappenBefore tomorrow"
+//	       - "result.systemout ShouldHappenBefore '5 minutes from now'"
 func ShouldHappenBefore(actual interface{}, expected ...interface{}) error {
 	if err := need(1, expected); err != nil {
 		return err
@@ -991,7 +999,7 @@ func ShouldHappenBefore(actual interface{}, expected ...interface{}) error {
 }
 
 // ShouldHappenOnOrBefore receives exactly 2 time.Time arguments and asserts that the first happens on or before the second.
-// The arguments have to respect the date format RFC3339, as 2006-01-02T15:04:00+07:00
+// The arguments have to respect the date format RFC3339 (ie. 2006-01-02T15:04:00+07:00) or humanize format (ie. now, tomorrow, yesterday, 5 minutes ago)
 //
 // Example of testsuite file:
 //
@@ -1006,6 +1014,13 @@ func ShouldHappenBefore(actual interface{}, expected ...interface{}) error {
 //	    script: "echo {{.time}}"
 //	    assertions:
 //	      - result.systemout ShouldHappenOnOrBefore "{{.time_with_5s_after}}"
+//	 - name: test assertion with humanize format
+//	   steps:
+//	   - type: exec
+//	     script: "echo {{.venom.datetime}}"
+//	     assertions:
+//	       - "result.systemout ShouldHappenOnOrBefore tomorrow"
+//	       - "result.systemout ShouldHappenOnOrBefore '5 minutes from now'"
 func ShouldHappenOnOrBefore(actual interface{}, expected ...interface{}) error {
 	if err := need(1, expected); err != nil {
 		return err
@@ -1027,7 +1042,7 @@ func ShouldHappenOnOrBefore(actual interface{}, expected ...interface{}) error {
 }
 
 // ShouldHappenAfter receives exactly 2 time.Time arguments and asserts that the first happens after the second.
-// The arguments have to respect the date format RFC3339, as 2006-01-02T15:04:00+07:00
+// The arguments have to respect the date format RFC3339 (ie. 2006-01-02T15:04:00+07:00) or humanize format (ie. now, tomorrow, yesterday, 5 minutes ago)
 //
 // Example of testsuite file:
 //
@@ -1042,6 +1057,13 @@ func ShouldHappenOnOrBefore(actual interface{}, expected ...interface{}) error {
 //	    script: "echo {{.time}}"
 //	    assertions:
 //	      - result.systemout ShouldHappenAfter "{{.time_with_5s_before}}"
+//	 - name: test assertion with humanize format
+//	   steps:
+//	   - type: exec
+//	     script: "echo {{.venom.datetime}}"
+//	     assertions:
+//	       - "result.systemout ShouldHappenAfter yesterday"
+//	       - "result.systemout ShouldHappenAfter '5 minutes ago'"
 func ShouldHappenAfter(actual interface{}, expected ...interface{}) error {
 	if err := need(1, expected); err != nil {
 		return err
@@ -1063,7 +1085,7 @@ func ShouldHappenAfter(actual interface{}, expected ...interface{}) error {
 }
 
 // ShouldHappenOnOrAfter receives exactly 2 time.Time arguments and asserts that the first happens on or after the second.
-// The arguments have to respect the date format RFC3339, as 2006-01-02T15:04:00+07:00
+// The arguments have to respect the date format RFC3339 (ie. 2006-01-02T15:04:00+07:00) or humanize format (ie. now, tomorrow, yesterday, 5 minutes ago)
 //
 // Example of testsuite file:
 //
@@ -1078,6 +1100,13 @@ func ShouldHappenAfter(actual interface{}, expected ...interface{}) error {
 //	    script: "echo {{.time}}"
 //	    assertions:
 //	      - result.systemout ShouldHappenOnOrAfter "{{.time_with_5s_before}}"
+//	 - name: test assertion with humanize format
+//	   steps:
+//	   - type: exec
+//	     script: "echo {{.venom.datetime}}"
+//	     assertions:
+//	       - "result.systemout ShouldHappenOnOrAfter yesterday"
+//	       - "result.systemout ShouldHappenOnOrAfter '5 minutes ago'"
 func ShouldHappenOnOrAfter(actual interface{}, expected ...interface{}) error {
 	if err := need(1, expected); err != nil {
 		return err
@@ -1099,7 +1128,7 @@ func ShouldHappenOnOrAfter(actual interface{}, expected ...interface{}) error {
 }
 
 // ShouldHappenBetween receives exactly 3 time.Time arguments and asserts that the first happens between (not on) the second and third.
-// The arguments have to respect the date format RFC3339, as 2006-01-02T15:04:00+07:00
+// The arguments have to respect the date format RFC3339 (ie. 2006-01-02T15:04:00+07:00) or humanize format (ie. yesterday, 5 minutes ago)
 //
 // Example of testsuite file:
 //
@@ -1115,6 +1144,13 @@ func ShouldHappenOnOrAfter(actual interface{}, expected ...interface{}) error {
 //	    script: "echo {{.time}}"
 //	    assertions:
 //	      - result.systemout ShouldHappenBetween "{{.time_with_5s_before}}" "{{.time_with_5s_after}}"
+//	- name: test assertion with humanize format
+//	   steps:
+//	   - type: exec
+//	     script: "echo {{.venom.datetime}}"
+//	     assertions:
+//	       - "result.systemout ShouldHappenBetween yesterday tomorrow"
+//	       - "result.systemout ShouldHappenBetween '5 minutes ago' '5 minutes from now'"
 func ShouldHappenBetween(actual interface{}, expected ...interface{}) error {
 	if err := need(2, expected); err != nil {
 		return err
@@ -1304,14 +1340,21 @@ func getTimeFromString(in interface{}) (time.Time, error) {
 	if t, isTime := in.(time.Time); isTime {
 		return t, nil
 	}
+
 	s, err := cast.ToStringE(in)
 	if err != nil {
 		return time.Time{}, errors.Errorf("invalid date provided: %q", in)
 	}
 
 	t, err := time.Parse(time.RFC3339, s)
-	if err != nil {
-		return time.Time{}, errors.Errorf("invalid date RFC3339 provided with %q", in)
+	if err == nil {
+		return t, nil
 	}
+
+	t, innerErr := naturaldate.Parse(s, time.Now())
+	if innerErr != nil {
+		return time.Time{}, errors.Errorf("invalid date provided with %q not in RFC3339 format or humanize format", in)
+	}
+
 	return t, nil
 }
diff --git a/assertions/assertions_test.go b/assertions/assertions_test.go
index 7cb4aab0..cdba9dd6 100644
--- a/assertions/assertions_test.go
+++ b/assertions/assertions_test.go
@@ -1183,6 +1183,13 @@ func TestShouldHappenBefore(t *testing.T) {
 				expected: []interface{}{time.Now().Add(1 * time.Second)},
 			},
 		},
+		{
+			name: "ok",
+			args: args{
+				actual:   time.Now(),
+				expected: []interface{}{"1 minute from now"},
+			},
+		},
 		{
 			name: "ko",
 			args: args{
@@ -1218,6 +1225,13 @@ func TestShouldHappenOnOrBefore(t *testing.T) {
 				expected: []interface{}{time.Now().Add(1 * time.Second)},
 			},
 		},
+		{
+			name: "ok",
+			args: args{
+				actual:   time.Now(),
+				expected: []interface{}{"1 minute from now"},
+			},
+		},
 		{
 			name: "ko",
 			args: args{
@@ -1253,6 +1267,13 @@ func TestShouldHappenAfter(t *testing.T) {
 				expected: []interface{}{time.Now().Add(-1 * time.Second)},
 			},
 		},
+		{
+			name: "ok",
+			args: args{
+				actual:   time.Now(),
+				expected: []interface{}{"1 second ago"},
+			},
+		},
 		{
 			name: "ko",
 			args: args{
@@ -1288,6 +1309,13 @@ func TestShouldHappenOnOrAfter(t *testing.T) {
 				expected: []interface{}{time.Now().Add(-1 * time.Second)},
 			},
 		},
+		{
+			name: "ok",
+			args: args{
+				actual:   time.Now(),
+				expected: []interface{}{"1 second ago"},
+			},
+		},
 		{
 			name: "ko",
 			args: args{
@@ -1346,6 +1374,13 @@ func TestShouldHappenBetween(t *testing.T) {
 			},
 			wantErr: true,
 		},
+		{
+			name: "ok",
+			args: args{
+				actual:   time.Now(),
+				expected: []interface{}{"1 minute ago", "1 minute from now"},
+			},
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
diff --git a/go.mod b/go.mod
index c960af7d..1ca3688e 100644
--- a/go.mod
+++ b/go.mod
@@ -88,6 +88,7 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/tj/go-naturaldate v1.3.0
 	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
 	github.com/xdg-go/scram v1.1.2 // indirect
 	github.com/xdg-go/stringprep v1.0.4 // indirect
diff --git a/go.sum b/go.sum
index 88a6b918..e3a8035e 100644
--- a/go.sum
+++ b/go.sum
@@ -549,6 +549,10 @@ github.com/subosito/gotenv v1.2.0 h1:Slr1R9HxAlEKefgq5jn9U+DnETlIUa6HfgEzj0g5d7s
 github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69rRypqCw=
 github.com/tidwall/pretty v1.0.0 h1:HsD+QiTn7sK6flMKIvNmpqz1qrpP3Ps6jOKIKMooyg4=
 github.com/tidwall/pretty v1.0.0/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk=
+github.com/tj/assert v0.0.0-20190920132354-ee03d75cd160 h1:NSWpaDaurcAJY7PkL8Xt0PhZE7qpvbZl5ljd8r6U0bI=
+github.com/tj/assert v0.0.0-20190920132354-ee03d75cd160/go.mod h1:mZ9/Rh9oLWpLLDRpvE+3b7gP/C2YyLFYxNmcLnPTMe0=
+github.com/tj/go-naturaldate v1.3.0 h1:OgJIPkR/Jk4bFMBLbxZ8w+QUxwjqSvzd9x+yXocY4RI=
+github.com/tj/go-naturaldate v1.3.0/go.mod h1:rpUbjivDKiS1BlfMGc2qUKNZ/yxgthOfmytQs8d8hKk=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
 github.com/xdg-go/pbkdf2 v1.0.0 h1:Su7DPu48wXMwC3bs7MCNG+z4FhcyEuz5dlvchbq0B0c=
diff --git a/tests/assertions/ShouldHappenAfter.yml b/tests/assertions/ShouldHappenAfter.yml
index 4b4f0886..4452da20 100644
--- a/tests/assertions/ShouldHappenAfter.yml
+++ b/tests/assertions/ShouldHappenAfter.yml
@@ -1,11 +1,18 @@
-name: test ShouldHappenAfter - use RFC3339 format
+name: test ShouldHappenAfter
 vars:
   time_with_5s_before: 2006-01-02T15:04:00+07:00
   time: 2006-01-02T15:04:05+07:00
 testcases:
-- name: test assertion
+- name: test assertion with RFC3339 date format
   steps:
   - type: exec
     script: "echo {{.time}}"
     assertions:
-      - result.systemout ShouldHappenAfter "{{.time_with_5s_before}}"
\ No newline at end of file
+      - result.systemout ShouldHappenAfter "{{.time_with_5s_before}}"
+- name: test assertion with humanize format
+  steps:
+  - type: exec
+    script: "echo {{.venom.datetime}}"
+    assertions:
+      - "result.systemout ShouldHappenAfter yesterday"
+      - "result.systemout ShouldHappenAfter '5 minutes ago'"
diff --git a/tests/assertions/ShouldHappenBefore.yml b/tests/assertions/ShouldHappenBefore.yml
index 79cc3b6f..1f43399c 100644
--- a/tests/assertions/ShouldHappenBefore.yml
+++ b/tests/assertions/ShouldHappenBefore.yml
@@ -1,11 +1,18 @@
-name: test ShouldHappenBefore - use RFC3339 format
+name: test ShouldHappenBefore
 vars:
   time: 2006-01-02T15:04:05+07:00
   time_with_5s_after: 2006-01-02T15:04:10+07:00
 testcases:
-- name: test assertion
+- name: test assertion with RFC3339 date format
   steps:
   - type: exec
     script: "echo {{.time}}"
     assertions:
-      - result.systemout ShouldHappenBefore "{{.time_with_5s_after}}"
\ No newline at end of file
+      - result.systemout ShouldHappenBefore "{{.time_with_5s_after}}"
+- name: test assertion with humanize format
+  steps:
+  - type: exec
+    script: "echo {{.venom.datetime}}"
+    assertions:
+      - "result.systemout ShouldHappenBefore tomorrow"
+      - "result.systemout ShouldHappenBefore '5 minutes from now'"
diff --git a/tests/assertions/ShouldHappenBetween.yml b/tests/assertions/ShouldHappenBetween.yml
index 98cec74b..4f2f225a 100644
--- a/tests/assertions/ShouldHappenBetween.yml
+++ b/tests/assertions/ShouldHappenBetween.yml
@@ -1,12 +1,19 @@
-name: test ShouldHappenBetween - use RFC3339 format
+name: test ShouldHappenBetween
 vars:
   time_with_5s_before: 2006-01-02T15:04:00+07:00
   time: 2006-01-02T15:04:05+07:00
   time_with_5s_after: 2006-01-02T15:04:10+07:00
 testcases:
-- name: test assertion
+- name: test assertion with RFC3339 date format
   steps:
   - type: exec
     script: "echo {{.time}}"
     assertions:
-      - result.systemout ShouldHappenBetween "{{.time_with_5s_before}}" "{{.time_with_5s_after}}"
\ No newline at end of file
+      - result.systemout ShouldHappenBetween "{{.time_with_5s_before}}" "{{.time_with_5s_after}}"
+- name: test assertion with humanize format
+  steps:
+  - type: exec
+    script: "echo {{.venom.datetime}}"
+    assertions:
+      - "result.systemout ShouldHappenBetween yesterday tomorrow"
+      - "result.systemout ShouldHappenBetween '5 minutes ago' '5 minutes from now'"
diff --git a/tests/assertions/ShouldHappenOnOrAfter.yml b/tests/assertions/ShouldHappenOnOrAfter.yml
index 461cf29f..14c009e9 100644
--- a/tests/assertions/ShouldHappenOnOrAfter.yml
+++ b/tests/assertions/ShouldHappenOnOrAfter.yml
@@ -1,11 +1,18 @@
-name: test ShouldHappenOnOrAfter - use RFC3339 format
+name: test ShouldHappenOnOrAfter
 vars:
   time_with_5s_before: 2006-01-02T15:04:00+07:00
   time: 2006-01-02T15:04:05+07:00
 testcases:
-- name: test assertion
+- name: test assertion with RFC3339 date format
   steps:
   - type: exec
     script: "echo {{.time}}"
     assertions:
-      - result.systemout ShouldHappenOnOrAfter "{{.time_with_5s_before}}"
\ No newline at end of file
+      - result.systemout ShouldHappenOnOrAfter "{{.time_with_5s_before}}"
+- name: test assertion with humanize format
+  steps:
+  - type: exec
+    script: "echo {{.venom.datetime}}"
+    assertions:
+      - "result.systemout ShouldHappenOnOrAfter yesterday"
+      - "result.systemout ShouldHappenOnOrAfter '5 minutes ago'"
diff --git a/tests/assertions/ShouldHappenOnOrBefore.yml b/tests/assertions/ShouldHappenOnOrBefore.yml
index ca88b2f9..8b7169bf 100644
--- a/tests/assertions/ShouldHappenOnOrBefore.yml
+++ b/tests/assertions/ShouldHappenOnOrBefore.yml
@@ -1,11 +1,18 @@
-name: test ShouldHappenOnOrBefore - use RFC3339 format
+name: test ShouldHappenOnOrBefore
 vars:
   time: 2006-01-02T15:04:05+07:00
   time_with_5s_after: 2006-01-02T15:04:10+07:00
 testcases:
-- name: test assertion
+- name: test assertion with RFC3339 date format
   steps:
   - type: exec
     script: "echo {{.time}}"
     assertions:
-      - result.systemout ShouldHappenOnOrBefore "{{.time_with_5s_after}}"
\ No newline at end of file
+      - result.systemout ShouldHappenOnOrBefore "{{.time_with_5s_after}}"
+- name: test assertion with humanize format
+  steps:
+  - type: exec
+    script: "echo {{.venom.datetime}}"
+    assertions:
+      - "result.systemout ShouldHappenOnOrBefore tomorrow"
+      - "result.systemout ShouldHappenOnOrBefore '5 minutes from now'"