Fix #786 by adding timezone_utils. Also bumps mcp to 1.4.1

[mor10]

Description

Fixes problem with Daylight Savings Time (EDT, PDT, etc) outlined in #786 by adding timezone_utils.py with a comprehensive list of timezone-to-locale conversions and a utility function.

Server Details

• Server: time
• Changes to: tools

Motivation and Context

See #786

How Has This Been Tested?

Tested with Claude in the following scenarios:

• Passes with EDT
• Passes with PDT
• Passes with UCT

Breaking Changes

None I'm aware of

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Protocol Documentation
• My changes follows MCP security best practices
• I have updated the server's README accordingly
• I have tested this with an LLM client
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

Additional context

Timezone list and comments generated by Claude.