diff --git a/standards/smi/src/v2.rs b/standards/smi/src/v2.rs
index 45a5aa87..fed080f9 100644
--- a/standards/smi/src/v2.rs
+++ b/standards/smi/src/v2.rs
@@ -3,8 +3,6 @@
 use alloc::string::ToString;
 use core::convert::TryInto;
 
-use chrono::TimeZone;
-
 use rasn::{
     prelude::*,
     types::{Integer, ObjectIdentifier, OctetString, Oid, Utf8String},
@@ -29,22 +27,19 @@ pub type Opaque = crate::v1::Opaque;
 #[rasn(delegate, tag(application, 6))]
 pub struct Counter64(pub u64);
 
-pub const ORG: &'static Oid = Oid::ISO_IDENTIFIED_ORGANISATION;
-pub const DOD: &'static Oid = Oid::ISO_IDENTIFIED_ORGANISATION_DOD;
-pub const INTERNET: &'static Oid = crate::v1::INTERNET;
-pub const DIRECTORY: &'static Oid = crate::v1::DIRECTORY;
-pub const MGMT: &'static Oid = crate::v1::MGMT;
-pub const EXPERIMENTAL: &'static Oid = crate::v1::EXPERIMENTAL;
-pub const PRIVATE: &'static Oid = crate::v1::PRIVATE;
-pub const ENTERPRISES: &'static Oid = crate::v1::ENTERPRISES;
-pub const SECURITY: &'static Oid = Oid::ISO_IDENTIFIED_ORGANISATION_DOD_INTERNET_SECURITY;
-pub const SNMP_V2: &'static Oid = Oid::ISO_IDENTIFIED_ORGANISATION_DOD_INTERNET_SNMP_V2;
-pub const SNMP_DOMAINS: &'static Oid =
-    Oid::ISO_IDENTIFIED_ORGANISATION_DOD_INTERNET_SNMP_V2_DOMAINS;
-pub const SNMP_PROXIES: &'static Oid =
-    Oid::ISO_IDENTIFIED_ORGANISATION_DOD_INTERNET_SNMP_V2_PROXIES;
-pub const SNMP_MODULES: &'static Oid =
-    Oid::ISO_IDENTIFIED_ORGANISATION_DOD_INTERNET_SNMP_V2_MODULES;
+pub const ORG: &Oid = Oid::ISO_IDENTIFIED_ORGANISATION;
+pub const DOD: &Oid = Oid::ISO_IDENTIFIED_ORGANISATION_DOD;
+pub const INTERNET: &Oid = crate::v1::INTERNET;
+pub const DIRECTORY: &Oid = crate::v1::DIRECTORY;
+pub const MGMT: &Oid = crate::v1::MGMT;
+pub const EXPERIMENTAL: &Oid = crate::v1::EXPERIMENTAL;
+pub const PRIVATE: &Oid = crate::v1::PRIVATE;
+pub const ENTERPRISES: &Oid = crate::v1::ENTERPRISES;
+pub const SECURITY: &Oid = Oid::ISO_IDENTIFIED_ORGANISATION_DOD_INTERNET_SECURITY;
+pub const SNMP_V2: &Oid = Oid::ISO_IDENTIFIED_ORGANISATION_DOD_INTERNET_SNMP_V2;
+pub const SNMP_DOMAINS: &Oid = Oid::ISO_IDENTIFIED_ORGANISATION_DOD_INTERNET_SNMP_V2_DOMAINS;
+pub const SNMP_PROXIES: &Oid = Oid::ISO_IDENTIFIED_ORGANISATION_DOD_INTERNET_SNMP_V2_PROXIES;
+pub const SNMP_MODULES: &Oid = Oid::ISO_IDENTIFIED_ORGANISATION_DOD_INTERNET_SNMP_V2_MODULES;
 
 const FULL_DATE_FORMAT: &str = "%Y%m%d%H%MZ";
 const SHORT_DATE_FORMAT: &str = "%y%m%d%H%MZ";
@@ -117,10 +112,10 @@ impl Decode for ExtUtcTime {
 
         let string = Utf8String::from_utf8_lossy(&bytes);
 
-        if let Ok(time) = chrono::Utc.datetime_from_str(&string, FULL_DATE_FORMAT) {
-            Ok(Self(time))
-        } else if let Ok(time) = chrono::Utc.datetime_from_str(&string, SHORT_DATE_FORMAT) {
-            Ok(Self(time))
+        if let Ok(time) = chrono::DateTime::parse_from_str(&string, FULL_DATE_FORMAT) {
+            Ok(Self(time.into()))
+        } else if let Ok(time) = chrono::DateTime::parse_from_str(&string, SHORT_DATE_FORMAT) {
+            Ok(Self(time.into()))
         } else {
             (error)()
         }