ttlSchedule: Schedule can't be edited via UI if timestamp does not end in :00Z

[MitchellGerdisch]

What happened?

The ttlSchedule resource takes a timestamp of the form 2020-01-01T00:00:00Z as per https://www.pulumi.com/registry/packages/pulumiservice/api-docs/ttlschedule/#timestamp_nodejs

If the timestamp that is provided does NOT end in :00Z but instead is set to, say, :23Z then if you try to edit the schedule in the UI, it will not update (nor throw an error).

Example

Add the following code or similar to a stack that has a deployment set up:

ttlsched = pulumiservice.TtlSchedule(f"{config.base_name}-ttlsched", pulumiservice.TtlScheduleArgs(
    organization=pulumi.get_organization(),
    project=pulumi.get_project(),
    stack=pulumi.get_stack(),
    timestamp="2025-12-04T03:38:22Z",
    # timestamp="2025-12-05T13:23:00Z"
))

• Run the stack
• Go to the UI and try to edit the TTL schedule time and hit Save Schedule.
• Nothing will happen.
• And when you cancel out you'll see the schedule hasn't been updated.
• Looking at Developer Tools output, you'll see an error like:
  • "message": "Bad Request: decoding JSON: parsing time \"2025-12-04T05:38:10:00Z\" as \"2006-01-02T15:04:05Z07:00\": cannot parse \":00Z\" as \"Z07:00\""
• update the code to use the timestamp that ends in :00Z and run the stack and try to update the schedule via the UI and it'll work fine.

Either the pulumi service provider should error if indeed it shouldn't be accepting timestamps that end in something other than :00Z or it should just overwrite the time to have :00Z at the end since it's not applicable in the UI anyway.

Output of pulumi about

CLI
Version 3.139.0
Go Version go1.23.3
Go Compiler gc

Plugins
KIND NAME VERSION
resource aws 6.62.2
resource command 0.11.1
resource pulumiservice 0.27.1
language python unknown
resource stackmgmt 3.3.4

Host
OS darwin
Version 15.1
Arch x86_64

This project is written in python: executable='/Users/mitch/Downloads/stack-mgmt-autobuild/elegant-ytterbium-kakapo/venv/bin/python' version='3.11.8'

Backend
Name pulumi.com

Dependencies:
NAME VERSION
netaddr 1.3.0
pequod_stackmgmt 3.3.4
pip 24.0
pulumi_aws 6.62.2
setuptools 65.5.0

Additional context

No response

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