From 86f289cc9bc0357303122e01afc340da3e0c37a7 Mon Sep 17 00:00:00 2001
From: Adam Spofford <adam.spofford@dfinity.org>
Date: Fri, 19 Apr 2024 21:53:12 -0400
Subject: [PATCH] Remove code for checking the local timezone

---
 Cargo.lock            | 73 +------------------------------------------
 Cargo.toml            |  2 --
 src/lib/format/mod.rs | 14 +--------
 3 files changed, 2 insertions(+), 87 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 624aa96..928f274 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -739,28 +739,6 @@ dependencies = [
  "windows-targets 0.52.0",
 ]
 
-[[package]]
-name = "chrono-tz"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93698b29de5e97ad0ae26447b344c482a7284c737d9ddc5f9e52b74a336671bb"
-dependencies = [
- "chrono",
- "chrono-tz-build",
- "phf",
-]
-
-[[package]]
-name = "chrono-tz-build"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c088aee841df9c3041febbb73934cfc39708749bf96dc827e3359cd39ef11b1"
-dependencies = [
- "parse-zoneinfo",
- "phf",
- "phf_codegen",
-]
-
 [[package]]
 name = "ciborium"
 version = "0.2.2"
@@ -4219,15 +4197,6 @@ dependencies = [
  "windows-targets 0.48.5",
 ]
 
-[[package]]
-name = "parse-zoneinfo"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c705f256449c60da65e11ff6626e0c16a0a0b96aaa348de61376b249bc340f41"
-dependencies = [
- "regex",
-]
-
 [[package]]
 name = "paste"
 version = "1.0.14"
@@ -4351,35 +4320,6 @@ dependencies = [
  "slog",
 ]
 
-[[package]]
-name = "phf"
-version = "0.11.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ade2d8b8f33c7333b51bcf0428d37e217e9f32192ae4772156f65063b8ce03dc"
-dependencies = [
- "phf_shared 0.11.2",
-]
-
-[[package]]
-name = "phf_codegen"
-version = "0.11.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8d39688d359e6b34654d328e262234662d16cc0f60ec8dcbe5e718709342a5a"
-dependencies = [
- "phf_generator",
- "phf_shared 0.11.2",
-]
-
-[[package]]
-name = "phf_generator"
-version = "0.11.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48e4cc64c2ad9ebe670cb8fd69dd50ae301650392e81c05f9bfcb2d5bdbc24b0"
-dependencies = [
- "phf_shared 0.11.2",
- "rand",
-]
-
 [[package]]
 name = "phf_shared"
 version = "0.10.0"
@@ -4389,15 +4329,6 @@ dependencies = [
  "siphasher",
 ]
 
-[[package]]
-name = "phf_shared"
-version = "0.11.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90fcb95eef784c2ac79119d1dd819e162b5da872ce6f3c3abe1e8ca1c082f72b"
-dependencies = [
- "siphasher",
-]
-
 [[package]]
 name = "pico-args"
 version = "0.5.0"
@@ -4711,14 +4642,12 @@ dependencies = [
  "candid",
  "candid_parser",
  "chrono",
- "chrono-tz",
  "clap",
  "crc32fast",
  "data-encoding",
  "flate2",
  "hex",
  "hidapi",
- "iana-time-zone",
  "ic-agent",
  "ic-base-types",
  "ic-ckbtc-minter",
@@ -5587,7 +5516,7 @@ dependencies = [
  "new_debug_unreachable",
  "once_cell",
  "parking_lot",
- "phf_shared 0.10.0",
+ "phf_shared",
  "precomputed-hash",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index ebac054..2fadc96 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -34,14 +34,12 @@ base64 = "0.13.0"
 bigdecimal = "0.4"
 bip32 = "0.4.0"
 chrono = "0.4"
-chrono-tz = "0.9"
 clap = { version = "3.1.18", features = ["derive", "cargo"] }
 crc32fast = "1.3.2"
 data-encoding = "2.3.3"
 flate2 = "1.0.22"
 hex = { version = "0.4.2", features = ["serde"] }
 hidapi = { version = "1.4", default-features = false, optional = true }
-iana-time-zone = "0.1"
 indicatif = "0.17"
 itertools = "0.10.5"
 k256 = { version = "0.11.4", features = ["pem"] }
diff --git a/src/lib/format/mod.rs b/src/lib/format/mod.rs
index 99b4005..3302963 100644
--- a/src/lib/format/mod.rs
+++ b/src/lib/format/mod.rs
@@ -1,5 +1,4 @@
 use chrono::{DateTime, TimeZone, Utc};
-use chrono_tz::{OffsetName, Tz};
 use itertools::Itertools;
 
 pub mod ckbtc;
@@ -10,18 +9,7 @@ pub mod nns_governance;
 pub mod registry;
 
 pub fn format_datetime(datetime: DateTime<Utc>) -> String {
-    let fmt = "%b %d %Y %X";
-    if let Ok(tz) = iana_time_zone::get_timezone() {
-        let tz = tz.parse::<Tz>().unwrap();
-        format!(
-            "{} {}",
-            datetime.with_timezone(&tz).format(fmt),
-            tz.offset_from_utc_datetime(&datetime.naive_utc())
-                .abbreviation()
-        )
-    } else {
-        format!("{} UTC", datetime.format(fmt))
-    }
+    format!("{} UTC", datetime.format("%b %d %Y %X"))
 }
 
 pub fn format_timestamp_seconds(seconds: u64) -> String {