diff --git a/gtfs/spec/en/reference.md b/gtfs/spec/en/reference.md
index a917e6012..bc67cfefb 100644
--- a/gtfs/spec/en/reference.md
+++ b/gtfs/spec/en/reference.md
@@ -76,7 +76,7 @@ Presence conditions applicable to fields and files:
- **Float** - A floating point number.
- **Integer** - An integer.
- **Phone number** - A phone number.
-- **Time** - Time in the HH:MM:SS format (H:MM:SS is also accepted). The time is measured from "noon minus 12h" of the service day (effectively midnight except for days on which daylight savings time changes occur). For times occurring after midnight, enter the time as a value greater than 24:00:00 in HH:MM:SS local time for the day on which the trip schedule begins.
*Example: `14:30:00` for 2:30PM or `25:35:00` for 1:35AM on the next day.*
+- **Time** - Time in the HH:MM:SS format (H:MM:SS is also accepted). The time is measured from "noon minus 12h" of the service day (effectively midnight except for days on which daylight savings time changes occur). For times occurring after midnight on the service day, enter the time as a value greater than 24:00:00 in HH:MM:SS.
*Example: `14:30:00` for 2:30PM or `25:35:00` for 1:35AM on the next day.*
- **Text** - A string of UTF-8 characters, which is aimed to be displayed and which must therefore be human readable.
- **Timezone** - TZ timezone from the [https://www.iana.org/time-zones](https://www.iana.org/time-zones). Timezone names never contain the space character but may contain an underscore. Refer to [http://en.wikipedia.org/wiki/List\_of\_tz\_zones](http://en.wikipedia.org/wiki/List\_of\_tz\_zones) for a list of valid values.
*Example: `Asia/Tokyo`, `America/Los_Angeles` or `Africa/Cairo`.*
- **URL** - A fully qualified URL that includes http:// or https://, and any special characters in the URL must be correctly escaped. See the following [http://www.w3.org/Addressing/URL/4\_URI\_Recommentations.html](http://www.w3.org/Addressing/URL/4\_URI\_Recommentations.html) for a description of how to create fully qualified URL values.
@@ -254,8 +254,8 @@ Primary key (`trip_id`, `stop_sequence`)
| Field Name | Type | Presence | Description |
| ------ | ------ | ------ | ------ |
| `trip_id` | Foreign ID referencing `trips.trip_id` | **Required** | Identifies a trip. |
-| `arrival_time` | Time | **Conditionally Required** | Arrival time at the stop (defined by `stop_times.stop_id`) for a specific trip (defined by `stop_times.trip_id`).
If there are not separate times for arrival and departure at a stop, `arrival_time` and `departure_time` should be the same.
For times occurring after midnight on the service day, enter the time as a value greater than 24:00:00 in HH:MM:SS local time for the day on which the trip schedule begins.
If exact arrival and departure times (`timepoint=1` or empty) are not available, estimated or interpolated arrival and departure times (`timepoint=0`) should be provided.
Conditionally Required:
- **Required** for the first and last stop in a trip (defined by `stop_times.stop_sequence`).
- **Required** for `timepoint=1`.
- Optional otherwise.|
-| `departure_time` | Time | **Conditionally Required** | Departure time from the stop (defined by `stop_times.stop_id`) for a specific trip (defined by `stop_times.trip_id`).
If there are not separate times for arrival and departure at a stop, `arrival_time` and `departure_time` should be the same.
For times occurring after midnight on the service day, enter the time as a value greater than 24:00:00 in HH:MM:SS local time for the day on which the trip schedule begins.
If exact arrival and departure times (`timepoint=1` or empty) are not available, estimated or interpolated arrival and departure times (`timepoint=0`) should be provided.
Conditionally Required:
- **Required** for `timepoint=1`.
- Optional otherwise.| |
+| `arrival_time` | Time | **Conditionally Required** | Arrival time at the stop (defined by `stop_times.stop_id`) for a specific trip (defined by `stop_times.trip_id`) in the time zone specified by `agency.agency_timezone`, not `stops.stop_timezone`.
If there are not separate times for arrival and departure at a stop, `arrival_time` and `departure_time` should be the same.
For times occurring after midnight on the service day, enter the time as a value greater than 24:00:00 in HH:MM:SS.
If exact arrival and departure times (`timepoint=1` or empty) are not available, estimated or interpolated arrival and departure times (`timepoint=0`) should be provided.
Conditionally Required:
- **Required** for the first and last stop in a trip (defined by `stop_times.stop_sequence`).
- **Required** for `timepoint=1`.
- Optional otherwise.|
+| `departure_time` | Time | **Conditionally Required** | Departure time from the stop (defined by `stop_times.stop_id`) for a specific trip (defined by `stop_times.trip_id`) in the time zone specified by `agency.agency_timezone`, not `stops.stop_timezone`.
If there are not separate times for arrival and departure at a stop, `arrival_time` and `departure_time` should be the same.
For times occurring after midnight on the service day, enter the time as a value greater than 24:00:00 in HH:MM:SS.
If exact arrival and departure times (`timepoint=1` or empty) are not available, estimated or interpolated arrival and departure times (`timepoint=0`) should be provided.
Conditionally Required:
- **Required** for `timepoint=1`.
- Optional otherwise.| |
| `stop_id` | Foreign ID referencing `stops.stop_id` | **Required** | Identifies the serviced stop. All stops serviced during a trip must have a record in [stop_times.txt](#stop_timestxt). Referenced locations must be stops/platforms, i.e. their `stops.location_type` value must be `0` or empty. A stop may be serviced multiple times in the same trip, and multiple trips and routes may service the same stop. |
| `stop_sequence` | Non-negative integer | **Required** | Order of stops for a particular trip. The values must increase along the trip but do not need to be consecutive.
*Example: The first location on the trip could have a `stop_sequence`=`1`, the second location on the trip could have a `stop_sequence`=`23`, the third location could have a `stop_sequence`=`40`, and so on.* |
| `stop_headsign` | Text | Optional | Text that appears on signage identifying the trip's destination to riders. This field overrides the default `trips.trip_headsign` when the headsign changes between stops. If the headsign is displayed for an entire trip, `trips.trip_headsign` should be used instead.
A `stop_headsign` value specified for one `stop_time` does not apply to subsequent `stop_time`s in the same trip. If you want to override the `trip_headsign` for multiple `stop_time`s in the same trip, the `stop_headsign` value must be repeated in each `stop_time` row. |